Question

A pump lifts 20kg of water in 1 minute to a vertical height of 30 m.Find the power of the pump.

Answer 1

Answer:

Work done = mgh

Where

m = mass of water

g = acceleration due to gravity = 9.8m/s

h = height

W = 20×9.8×30

W = 5880N

Power = Work/Time

Time = 1min = 60s

P = 5880/60

P = 98W