Question

A water pump raises 50 LTE of water in 5s to a height of 25m.calculate the power supply

Answer 1

Power = Energy / Time
= mgh / t
= Vdgh / t
= (50 L × 1 kg/L × 9.8 m/s² × 25 m) / (5 s)
= 2450 watts
= 2.45 kilowatts

∴ Power supply of motor is 2.45 kilowatts