Components of force vector question please! I can never figure out which is Fx and which is Fy when dividing up force vector F into components. Then, is the value Fcostheta? or Fsintheta?

In my drawiing have I labeled the components correctly?

Question

Components of force vector question please! I can never figure out which is Fx and which is Fy when dividing up force vector F into components. Then, is the value Fcostheta? or Fsintheta?

In my drawiing have I labeled the components correctly?

ganeshie8 · Answer

depends on which angle u call theta.
so label theta also first :)

jotopia34 · Answer

Ookay, sorry, let me add the given angles to the drawing

jotopia34 · Answer

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ganeshie8 · Answer

Forget about forces for a sec.
and lets work oly the trig+triangles ok

ganeshie8 · Answer

|dw:1389327449676:dw|