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Water is drawn from a well in a 5kg drum...

Water is drawn from a well in a `5kg` drum of capacity `55L` by two ropes connected to the top of the drum. The linear mass density of each rope is `0.5kgm^-1`. The work done in lifting water to the ground from the surface of water in the well `20m` below is
`[g=10ms^-2]`

A

`1.4 xx 10^(4)J`

B

`1.5 xx 10^(4)J`

C

`9.8 xx 6 xx 10 J`

D

`18 J`

Text Solution

Verified by Experts

The correct Answer is:
A
`W = Mgh + rho_(w)Vgh + (mg(h)/(2))2`
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