Question

if a pump pumps 200 kg of water to a height of 100m in 10 secs, then whats the power of the pump

Answer 1

power=work/time
=mgh/t
=200×9.8×100/10
=19600watt

Answer 2

Work done to pump the wate to that height is
W = mgh

Power = Work / Time
= mgh / t
= (200 kg × 9.8 m/s² × 100 m) / (10 s)
= 19600 Watt
= 19.6 kilowatts

∴ Power of pump is 19.6 kilowatts