Question

a water pump raises 50 litres of water through a height of 25 m in 5 seconds calculate the power of the pump required​

Answer 1

mass=volume*density

=(50litres)(1000kg/m^3)

=(50/1000m^3)(1000kg/m^3)

=50kg

use, energy=mgh=50kg (10N/kg)(25m)

=12500Nm=12500j

power=energy/time

= 12500j/5sec

=2500j/sec

Answer 2

I think it will help you