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A man slowly pulls a bucket of water fro...

A man slowly pulls a bucket of water from a well of depth `h=20m`. The mass of the uniform rope and bucket full of water are `m=200g` and `M=19.9kg` respectively. Find the work done (in kJ) by the mean.

Text Solution

Verified by Experts

The correct Answer is:
`(4)`
As the centre of gravity of rope comes up by `h//2` and that of bucket by h, required work would be
`W=sqrt(etagr)+Mgh=4000J=4kJ`
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