M1 help

[TheHK16]

hi there

i need some help with statics of a particle

when do i use sin and when do i use cos when resolving forces

[Adnan-KSA]

When ever a force is acting at an angle. For the component with the angle we write FCosx and other one we use FSinx.


F : Force
x : Angle

[TheHK16]

When ever a force is acting at an angle. For the component with the angle we write FCosx and other one we use FSinx.


F : Force
x : Angle

what if the question is asking me to resolve horizontally and vertically

[Sanchez]

what if the question is asking me to resolve horizontally and vertically

It depends how the angle is given in the question.
If the angle is given wrt to the horizontal line it's FcosX for the horizontal component and FsinX for the vertical component.
If the angle is given wrt to the vertical line it's vice versa
Hope you got it. It's easier to explain trignometry and mechanics with the help of a diagram.

[TheHK16]

It depends how the angle is given in the question.
If the angle is given wrt to the horizontal line it's FcosX for the horizontal component and FsinX for the vertical component.
If the angle is given wrt to the vertical line it's vice versa
Hope you got it. It's easier to explain trignometry and mechanics with the help of a diagram.

thanks a lot