The work done by centripetal force is ______.
A) positive B) zero C) negative D) unity
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Answer: Option (B)
Work done by centripetal force in circular motion is zero....
Explanation:
force is always directed perpendicular to the direction that the object is being displaced. The angle Theta in the above equation is 90 degrees and the cosine of 90 degrees is 0. Thus, the work done by the centripetal force in the case of uniform circular motion is 0 Joules.
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Answer: b
Explanation:force is perpendicular so work done is 0
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