Question

A water pump lifts water from level of 10 m below ground water is pumped at rate of 30 kg/min what should be power inhp

Answer 1

take g as 10m/s2

the workdone is mgh=30*10*10=3000J

time=1min=60s
so power=W/t =3000/60=50W=0.067Hp

Answer 2

50 W is the right answer