Question

20. A well is in the form of a cylinder
of radius 3.5m. Water surface in
it is at depth of 15m and depth of
water column is 10m. Work done
in draining out half of water from
it is, (g = 10ms 2)
1) 33.7 MJ 2) 42.5 MJ
3) 67.375 MJ 4) 18.75 MJ


explanation also pls​

Answer 1

Answer:

answer is option 1) 33.7 MJ