Work done by a centripetal force moving a body in a circular path is:

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A Positive
B Negative
C Zero
D Maximum

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Answer: C. Zero

Centripetal force acts towards the centre, while the displacement at each instant is along the tangent. The angle between them is 90°, and cos 90° = 0, so no work is done.

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Work done by a centripetal force moving a body in a circular path is:

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