Question
A body of mass 10 kg is moving on a horizontal surface by applying a force of 10 N in forward direction . If body moves with constant velocity . Find the work done by applied force for a displacement of 2 m ?
Answer: Option A
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The work done by constant force is given by
` w = vec(F) * vec(s) = Fs cos theta = Fs cos 0`
= 10 x 2 = 20 joule.
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