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  #1  
Old 3rd December 2006, 20:03
bobbybhai bobbybhai is offline
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Speed

Hello everybody its Bobbybhai. I had a quick question from 22 yards like if somebody throws the ball how many seconds from the ball to the bat would be 80 miles per hour?
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  #2  
Old 3rd December 2006, 20:07
Khalil's Avatar
Khalil Khalil is offline
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Quote:
80 miles per hour?
I think that you should ask that question to Ajit Agarkar. Thats his bowling speed
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  #3  
Old 3rd December 2006, 20:12
Khalil's Avatar
Khalil Khalil is offline
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Ok I will be kind to you

80 mile/hour = 0.022 222 222 mile/second

i.e 2.67 seconds
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  #4  
Old 3rd December 2006, 20:18
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Fawad Fawad is offline
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Quote:
Originally Posted by Khalil
Ok I will be kind to you

80 mile/hour = 0.022 222 222 mile/second

i.e 2.67 seconds

That can't be right! 2.67 secs is a long time when you're out there in the middle. Akhtar's delivery (around 90mph) takes less than half a second.
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  #5  
Old 3rd December 2006, 20:29
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161 161 is offline
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Quote:
Originally Posted by Khalil
Ok I will be kind to you

80 mile/hour = 0.022 222 222 mile/second

i.e 2.67 seconds


someone needs a little math review
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  #6  
Old 3rd December 2006, 20:54
naddo naddo is offline
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Come on man, 22 yards is roughly 19.8m. This is 0.012 miles. Time therefore is 0.54 seconds.
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  #7  
Old 3rd December 2006, 21:18
bobbybhai bobbybhai is offline
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So anybody know yet?
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  #8  
Old 3rd December 2006, 22:25
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NorthStar NorthStar is offline
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Quote:
Originally Posted by bobbybhai
So anybody know yet?

1. 22 yards = 20.1168metres /1600metres = 0.0138miles
2. Reaction Time = distance/speed
= 0.0138miles/80mph
= 0.0001725hours * 3600secs
= 0.621secs
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  #9  
Old 3rd December 2006, 22:56
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Daoud Daoud is offline
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Take into note the approx 20% slow down that a ball experiences due to air resistance and when it hits the pitch. Sadly this slow down isnt linear and would be pretty hard to factor in
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  #10  
Old 3rd December 2006, 23:23
bobbybhai bobbybhai is offline
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thanks Daoud Bhai
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  #11  
Old 3rd December 2006, 23:23
bobbybhai bobbybhai is offline
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so anybody find out yet
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  #12  
Old 4th December 2006, 00:25
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Lightning Lightning is offline
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Quote:
Originally Posted by NorthStar
1. 22 yards = 20.1168metres /1600metres = 0.0138miles
2. Reaction Time = distance/speed
= 0.0138miles/80mph
= 0.0001725hours * 3600secs
= 0.621secs
I would agree with this. But if you factor in slowdown of ball after picthing by using guesstimation, it could be anywhere from .68 - .75 seconds.
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  #13  
Old 8th June 2007, 16:28
bobbybhai bobbybhai is offline
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80 Miles Per Hour!!!

Hey guys my name is Jibran and i just turned 15 and i think i bowl pretty fast. Whenever i bowl everybody thinks i bowl pretty fast. I think i bowl 80 miles per hour because thats what alot of people say. How was fast it it exactly from when you release the ball till when it hits the bat is 80 Miles hour. Please let me know thanks!
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  #14  
Old 8th June 2007, 16:37
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infamous9383 infamous9383 is offline
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buy a speed gun
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  #15  
Old 8th June 2007, 16:42
12thMan 12thMan is offline
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not sure what you are asking but in cricket the speed is measured at the time ball is released. it may lose over 10 mph by the time it reaches the batsman.
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  #16  
Old 8th June 2007, 17:19
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Faisal Akhtar Faisal Akhtar is offline
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I seriously doubt u'll be bowling at 80mph coz ur mates would find it pretty difficult to face u at that speed. If they're ok with u bowling at them speeds then rush them off to Pakistan and get em in the national team.
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  #17  
Old 8th June 2007, 17:24
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Rana Rana is offline
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good luck if you really are that fast!
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  #18  
Old 8th June 2007, 19:24
safehands46 safehands46 is offline
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Its fast for club. maybe first class. you have a chance but you have to be overall good cricketer.
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  #19  
Old 8th June 2007, 21:56
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Bobaran Bobaran is offline
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Quote:
Originally Posted by bobbybhai
Hey guys my name is Jibran and i just turned 15 and i think i bowl pretty fast. Whenever i bowl everybody thinks i bowl pretty fast. I think i bowl 80 miles per hour because thats what alot of people say. How was fast it it exactly from when you release the ball till when it hits the bat is 80 Miles hour. Please let me know thanks!
Yeah, your probably not that fast. That's quite a bit faster than a car. If you can bowl that fast, you'll probably bowl well over 100mph when you grow up.
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  #20  
Old 8th June 2007, 23:18
down4whatever down4whatever is offline
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Afridi can also bowl 80 mph. 80 is nothing, if you don't know how to bowl.
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  #21  
Old 8th June 2007, 23:19
usman_ash14 usman_ash14 is offline
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weight train your shoulders and back and ull be ven faster and injury free
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  #22  
Old 9th June 2007, 04:39
bobbybhai bobbybhai is offline
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Thanks guys for you trips but i'm going to go to Pakistan next year in the summer. Also after i am done with studies my goal is to make the Pakistan Team that's my dream. I think if i bowl really fast in Club Cricket i will make the Karachi team then do good there and make the national Team.
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  #23  
Old 9th June 2007, 05:03
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Bobaran Bobaran is offline
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Quote:
Originally Posted by down4whatever
Afridi can also bowl 80 mph. 80 is nothing, if you don't know how to bowl.
But Afridi isn't 15. Well if you are that fast, you must be incredibly fit, and you should immediately join some under 19 team.
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  #24  
Old 9th June 2007, 05:25
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the_game the_game is offline
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Didn't you create a similar thread one year ago (where people made so much fun of you that you had to abandon your PP logins)?
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  #25  
Old 9th June 2007, 05:32
Truthteller Truthteller is offline
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Quote:
Originally Posted by bobbybhai
Hey guys my name is Jibran and i just turned 15 and i think i bowl pretty fast. Whenever i bowl everybody thinks i bowl pretty fast. I think i bowl 80 miles per hour because thats what alot of people say. How was fast it it exactly from when you release the ball till when it hits the bat is 80 Miles hour. Please let me know thanks!


It is highly unlikely that at 15 you will be bowling at that speed.

If you do not have access to a speed gun, go to a first Class ground and offer to bowl in the nets at batsmen who are used to facing bowlers in the range 50 - 85 mph.

They would be able to give you a feel for what speed you are likely to be bowling.

If you are seriously fast, you need to be a t a club or academy where your action and the amount you bowl is monitored carefully. At 15 bowling
70 - 80 mph is putting a serious amount of stress on bones that are still growing.

Take care of yourself.
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  #26  
Old 9th June 2007, 05:48
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Lightning Lightning is offline
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Hahah, this is my little brother. And he's playing with you guys. I myself am around 70 mph and he's a good 10 miles slower than me. Still young though, only about to be 16.
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  #27  
Old 9th June 2007, 05:53
sayed.jaffar sayed.jaffar is offline
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First, i hope that you are telling the truth. Because this is not the forum where we expect from people to lie. If i take you at face value that by the time your ball reaches the batsman it is 80 mph then i think you are a fast bowler. You have to understand the pitch is about 22 yards and by the time bowl reaches the batsman it lose its speed. It is simple physics. That means you must be clocking at least 90+ mph in order for your ball to be at 80mph by the time it reaches other end. Again there are always factors which work in this regard. But if you the speedgun can prove that i think you are a pretty fast.
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  #28  
Old 9th June 2007, 06:07
bobbybhai bobbybhai is offline
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LightSpeed Gt Shutup Who are you i'm not your brother and i'm not playing if you lie again i am reporting on you and you will get banned!
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  #29  
Old 9th June 2007, 06:10
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Daoud Daoud is offline
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Quote:
Originally Posted by bobbybhai
LightSpeed Gt Shutup Who are you i'm not your brother and i'm not playing if you lie again i am reporting on you and you will get banned!
If he isnt you're brother, hes your alter ego cause you two have the same IP!
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  #30  
Old 9th June 2007, 06:10
Lightning's Avatar
Lightning Lightning is offline
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Quote:
Originally Posted by bobbybhai
LightSpeed Gt Shutup Who are you i'm not your brother and i'm not playing if you lie again i am reporting on you and you will get banned!



Daoud, how can we have the same IP when we both have different computers?

Edit: NVM, i forgot we both use the same router for internet access..

Last edited by LightSpeedGT; 9th June 2007 at 06:13.
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  #31  
Old 9th June 2007, 06:26
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Sean Sean is offline
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My mate who is 14 has been clocked at 120kph at an indoor cricket centre. So this lad here could be telling the truth.
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  #32  
Old 9th June 2007, 06:29
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Sean Sean is offline
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Quote:
Originally Posted by LightSpeedGT



Daoud, how can we have the same IP when we both have different computers?

Edit: NVM, i forgot we both use the same router for internet access..
If you were with the same service provider, only the start of the IP would be the same. I have the same ISP as Cricketkid but not exactly the same IP. That means we are with the same service provider but we are not the same person.

Oxy and Rob think myself and CK are the same person. And we aint.
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  #33  
Old 9th June 2007, 06:42
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lahori lahori is offline
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One of my friends Usman Shuja had been playing in the US national team and he is considered to be one of the fastest if not the fastest bowler in the US. I've seen him bowl and also played his deliveries and he sure was pretty damn fast. He attended the Pepsi bowling speed competition (the same one where this kid Talha bowled at 86mph) a year back and turned out his speed was 79mph.

http://www.squarelegsports.com/team_squareleg.htm

So I think its highly unlikely you're bowling 80mph especially at age 15. If you are then well you have a rare talent and could turn out to be a speed demon like Zahid.

Last edited by lahori; 9th June 2007 at 06:43.
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  #34  
Old 9th June 2007, 06:50
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Sean Sean is offline
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Who's Zahid?
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  #35  
Old 9th June 2007, 07:10
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Lightning Lightning is offline
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Zahid. Mohammad Zahid. The bolwer who was considered to be as fast if not faster than Shoaib before injury broke his career down.
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  #36  
Old 9th June 2007, 07:10
m_sohail m_sohail is offline
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Quote:
Originally Posted by Sean
Who's Zahid?
Mohammed Zahid, n ex-Pakistani player whose career was cut short by a back injury.
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  #37  
Old 9th June 2007, 09:38
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pak4life pak4life is offline
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are you throwing at 80mph or bowling? ;)
why dont you put a clip on youtube for us to see.
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  #38  
Old 9th June 2007, 09:44
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How you going to tell how fast he bowls on youtube?.
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  #39  
Old 9th June 2007, 09:53
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By seeing how quickly the ball goes through the air. Geez.
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  #40  
Old 9th June 2007, 10:30
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Whatever.

Last edited by CricketKid; 9th June 2007 at 10:34.
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  #41  
Old 9th June 2007, 10:31
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That was random......
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  #42  
Old 9th June 2007, 10:33
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Their is this cricket ball you can buy tells you how fast you bowl.
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  #43  
Old 9th June 2007, 10:37
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I'm looking for the link to it now.
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  #44  
Old 9th June 2007, 10:40
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Found it:
http://www.speedsensor.com.au/
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  #45  
Old 9th June 2007, 12:30
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Hash Hash is offline
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Quote:
Originally Posted by bobbybhai
so anybody find out yet
no
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  #46  
Old 9th June 2007, 13:06
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I remeber watching it showing how fast it comes out of the hand until it reaches the batsman and it was around 10kph slower when lee bowled it to the batsman.
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  #47  
Old 9th June 2007, 13:41
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Wazeeri Wazeeri is offline
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1 mile = 1760 yards
1 yards = 0.000568181818 miles
22 yards = 0.0125 miles = 1/80 miles
In a vacuum it would take
(60 x 60 ) / (80 x 80) = 0.5625 seconds

Air pressure generally is higher the faster the object is.
So deceleration = M x speed which in this case = 80* M (in miles)
M being a constant depending on air pressure on the day

After bouncing the speed of the ball changes. The resulting speed depends on the surface of the pitch and the momentum of the ball at the time it hits the ground.
As momentum = velocity x mass and mass of the ball is generally the same we will say that the resulting speed is N.

So depending on where the bowler decides to bounce the ball.
Taking the bounce of the ball to be from the bowlers crease = D

Taking the following

Than the total time taken for the ball to cross the 22 yards is
Without taking deceleration into account the time taken for the ball to reach the 22 yard mark after bouncing = ( 22 -d)/N

t = BEFORE BOUNCE + AFTER BOUNCE

BEFORE BOUNCE = 80 mph + 80^2mph + 2 * 80M * D

AFTER BOUNCE = N + N^2 + 2MN * (22-D)

Hope that answers the question.

Note that D and 22 are in yards and the speed is in MPH and we have also not taken into account the vertical velocity as it depends on the height of the bowler and whatever the case it will be negligent.
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  #48  
Old 9th June 2007, 17:51
Plasma Plasma is offline
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Quote:
Originally Posted by Wazeeri
1 mile = 1760 yards
1 yards = 0.000568181818 miles
22 yards = 0.0125 miles = 1/80 miles
In a vacuum it would take
(60 x 60 ) / (80 x 80) = 0.5625 seconds

Air pressure generally is higher the faster the object is.
So deceleration = M x speed which in this case = 80* M (in miles)
M being a constant depending on air pressure on the day

After bouncing the speed of the ball changes. The resulting speed depends on the surface of the pitch and the momentum of the ball at the time it hits the ground.
As momentum = velocity x mass and mass of the ball is generally the same we will say that the resulting speed is N.

So depending on where the bowler decides to bounce the ball.
Taking the bounce of the ball to be from the bowlers crease = D

Taking the following

Than the total time taken for the ball to cross the 22 yards is
Without taking deceleration into account the time taken for the ball to reach the 22 yard mark after bouncing = ( 22 -d)/N

t = BEFORE BOUNCE + AFTER BOUNCE

BEFORE BOUNCE = 80 mph + 80^2mph + 2 * 80M * D

AFTER BOUNCE = N + N^2 + 2MN * (22-D)

Hope that answers the question.

Note that D and 22 are in yards and the speed is in MPH and we have also not taken into account the vertical velocity as it depends on the height of the bowler and whatever the case it will be negligent.
I understood that My first year in physics.
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  #49  
Old 9th June 2007, 18:48
Truthteller Truthteller is offline
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Debut: Aug 2006
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Quote:
Originally Posted by Wazeeri
1 mile = 1760 yards
1 yards = 0.000568181818 miles
22 yards = 0.0125 miles = 1/80 miles
In a vacuum it would take
(60 x 60 ) / (80 x 80) = 0.5625 seconds

Air pressure generally is higher the faster the object is.
So deceleration = M x speed which in this case = 80* M (in miles)
M being a constant depending on air pressure on the day

After bouncing the speed of the ball changes. The resulting speed depends on the surface of the pitch and the momentum of the ball at the time it hits the ground.
As momentum = velocity x mass and mass of the ball is generally the same we will say that the resulting speed is N.

So depending on where the bowler decides to bounce the ball.
Taking the bounce of the ball to be from the bowlers crease = D

Taking the following

Than the total time taken for the ball to cross the 22 yards is
Without taking deceleration into account the time taken for the ball to reach the 22 yard mark after bouncing = ( 22 -d)/N

t = BEFORE BOUNCE + AFTER BOUNCE

BEFORE BOUNCE = 80 mph + 80^2mph + 2 * 80M * D

AFTER BOUNCE = N + N^2 + 2MN * (22-D)

Hope that answers the question.

Note that D and 22 are in yards and the speed is in MPH and we have also not taken into account the vertical velocity as it depends on the height of the bowler and whatever the case it will be negligent.
To make your answer more useful why don't you post a little chart which gives the values of t based on the following:

First, the point of release to the point of impact on the bat is probably a distance of 20 not 22 yards , as both the bowler and the batsman aren't stood at the stumps and 22 yards is stump to stump distance.

Secondly on most surfaces a ball loses around 10% of its velocity on impact. A good length ball can be assumed to have travelled 18 yards before bouncing and therefore travels around 2 yards after it.

It is not unreasonable to assume standard air pressure at sea level.

Your table then to help the young lad should give the sensitivity of your answer of time elapsed based on standard sea level pressure, 10% loss of velocity on impact, 20 yard travel with 18 pre bounce, to the main variables you have identified that would significantly affect the time elapsed ie air pressure and loss of momentum on impact.

Unfortunately the biggest variable in practical measurement is likely to be the measurement of elapsed time using a hand held stop watch - but this could be overcome by taking a video of the bowling with a big stopwatch in the background that records 100ths of a second.

I look forward to seeing your table posted in the near future.
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  #50  
Old 9th June 2007, 19:07
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Saudi Saudi is offline
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I know a person who is a lightning quick fast bowler and you literally cannot see his bowl as a batsman, until the last moment. A few professional coaches I talked with reckon hes about 85+mph. Hes also 19 and really built like a fast bowler. Still work with your coach or friends and remember all the different variables as Wazeeri pointed out. You might reach there.
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  #51  
Old 9th June 2007, 19:19
12thMan 12thMan is offline
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Debut: Sep 2006
Runs: 26,886
Quote:
Originally Posted by Wazeeri
1 mile = 1760 yards
1 yards = 0.000568181818 miles
22 yards = 0.0125 miles = 1/80 miles
In a vacuum it would take
(60 x 60 ) / (80 x 80) = 0.5625 seconds

Air pressure generally is higher the faster the object is.
So deceleration = M x speed which in this case = 80* M (in miles)
M being a constant depending on air pressure on the day

After bouncing the speed of the ball changes. The resulting speed depends on the surface of the pitch and the momentum of the ball at the time it hits the ground.
As momentum = velocity x mass and mass of the ball is generally the same we will say that the resulting speed is N.

So depending on where the bowler decides to bounce the ball.
Taking the bounce of the ball to be from the bowlers crease = D

Taking the following

Than the total time taken for the ball to cross the 22 yards is
Without taking deceleration into account the time taken for the ball to reach the 22 yard mark after bouncing = ( 22 -d)/N

t = BEFORE BOUNCE + AFTER BOUNCE

BEFORE BOUNCE = 80 mph + 80^2mph + 2 * 80M * D

AFTER BOUNCE = N + N^2 + 2MN * (22-D)

Hope that answers the question.

Note that D and 22 are in yards and the speed is in MPH and we have also not taken into account the vertical velocity as it depends on the height of the bowler and whatever the case it will be negligent.
the simple rule is first bowl a full toss to get away from some of the unknown factors and then compare it.
then use the friction method you described somewhere where you may have called it D but the standard is F. F = city * temp / Mali
where city is from where did the soild came from (values in ICC tables) and Mali is the groundsman rating also in ICC table
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  #52  
Old 9th June 2007, 23:38
Bobaran's Avatar
Bobaran Bobaran is offline
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Debut: May 2007
Runs: 734
Quote:
Originally Posted by Truthteller
It is highly unlikely that at 15 you will be bowling at that speed.

If you do not have access to a speed gun, go to a first Class ground and offer to bowl in the nets at batsmen who are used to facing bowlers in the range 50 - 85 mph.

They would be able to give you a feel for what speed you are likely to be bowling.

If you are seriously fast, you need to be a t a club or academy where your action and the amount you bowl is monitored carefully. At 15 bowling
70 - 80 mph is putting a serious amount of stress on bones that are still growing.

Take care of yourself.
Yeah, that seems like a good idea. I think you might be pretty high, but most likely not 80, more like 70.
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  #53  
Old 10th June 2007, 00:48
bobbybhai bobbybhai is offline
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Hey guys i will try to put an over of my bowling on youtube as proof but just don't know how to can anybody tell me how to put a video of yourself on youtube.
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  #54  
Old 10th June 2007, 01:06
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Punter Punter is offline
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Video Camera?
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  #55  
Old 10th June 2007, 01:07
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Punter Punter is offline
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And just put it behind the nets or something and then bowl then go and upload it to your computer than upload to youtube.
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  #56  
Old 10th June 2007, 01:40
bobbybhai bobbybhai is offline
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How do I Upload it to my computer?
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  #57  
Old 12th June 2007, 16:11
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volcyz volcyz is offline
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I was bowling 80kph when I was 15 ;)
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  #58  
Old 12th June 2007, 17:22
bobbybhai bobbybhai is offline
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yeah thats probably because your a spinner! Don't post that again
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  #59  
Old 12th June 2007, 18:53
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Lightning Lightning is offline
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Debut: Jan 2005
Venue: Chicago, USA
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When I bowl everyone says i'm too fast. I think I bowl 300 mph. I will post youtube videos of me bowling from 16 yards to prove it okkkkk....
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  #60  
Old 12th June 2007, 20:08
waqararif11 waqararif11 is offline
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Quote:
Originally Posted by LightSpeedGT
When I bowl everyone says i'm too fast. I think I bowl 300 mph. I will post youtube videos of me bowling from 16 yards to prove it okkkkk....
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  #61  
Old 12th June 2007, 21:02
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Bailan Bailan is offline
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My buddy bowls fairly quick. well, quick enough to keep most of the guys on their toes, except when he clocked himself he was barely touching 73~75mph range.

btw, he is 21, so i my doubts with you bowling @ 80mph.

In anycase good luck, there was a 16 year old somewhere from karachi when pepsi did the speed challenge, he was doing what 86mph?

so its clearly possible.
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  #62  
Old 12th June 2007, 21:17
waqararif11 waqararif11 is offline
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I know someone who is 16 who is cloking around 70mph and hes a gym freak.....in any case i agree with one of the earlier dudes, no way 80mph, more like 70mph
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  #63  
Old 12th June 2007, 23:37
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Punter Punter is offline
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Have you recorded yourself bowling yet?
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  #64  
Old 13th June 2007, 13:13
BroskiBeat BroskiBeat is offline
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Debut: Jul 2006
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Mark Footit for Notts was clocked at 80mph when he was 15, I faced him a few times when he played for papplewick in the Notts league and he was rapid! He bowled a bouncer to my mate cracked him on the helmet and snapped the peak of it in half, and that was an U15 game!
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  #65  
Old 13th June 2007, 13:35
HAFRIDI HAFRIDI is offline
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Quote:
Originally Posted by LightSpeedGT
Hahah, this is my little brother. And he's playing with you guys. I myself am around 70 mph and he's a good 10 miles slower than me. Still young though, only about to be 16.
..And people still giving their advice
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