# what is the proof for w = F S cos theta

Suppose a constant force F acting on a body produces a displacement s in the body along the positive x- direction.

If  is the angle which F makes with the positive x-direction of the displacement,then the component of F in the direction of displacement is

So

• -1

this is the scientifically proof formula that

w=fs

w=mg*s

• 1

There is a Derivation for That.

• -4

there is no derivation for W= F x S but this formula is used to derive the formula for KE = 1/2 m v square ( square is only for v)

• 2

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