A uniform chain of length 4m and mass 4kg is hanging vertically from the pulley .The work done on winding the chain onto the pulley is
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Explanation:
The weight of hanging part (3L) of chain is (31Mg). This weight acts at centre of gravity of the hanging part, which is at a distance of (6L) from the
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Answer:
work done is -0(zero)
Explanation:
becase there is no movement of object in the direction of force
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