Work Done :: Discussion


6.A body moves a distance of 10m under the action of force F = 10N. If the work done is 25 J, the angle which the force makes with the direction of motion is?
A.0°
B.30°
C.60°
D.None of Above
Answer:  Option  D
Explanation:

W = Fscosθ
25 = 10×10cos⁡θ
Cosθ = 1/4
θ = cos(-1) 1/4.

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Published by:Michael Daani

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