Question

A pump is used to raise water through a height of 20 m. It transfers 200 kg of water in 15 minutes. Calculate the power of the pump. (g = 10m/s^2)

Answer 1

Answer:

Power=

$rate \: of \: doing \: work \: is \: called \: power$

H=20m

M=200

Time =15min.=900sec

Therefore, potential energy =mgh

=200*10*20

=40000 joule

Power=40000/900

=400/9

=44.44 j/s or watt