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Work done by a body moving on a circular...

Work done by a body moving on a circular track is zero at every instant because:

A

displacement is zero.

B

displacement is perpendicular to the centripetal force.

C

there is no force acting.

D

reason is not mentioned in the other options.

Text Solution

Verified by Experts

The correct Answer is:
B
Explanation : work down = Force `xx` displacement in circular path `xx cos theta`
Hence work done `=0" "[because cos theta = cos 90^(@) =0 ]`
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