the power of motor pump is 2kW. how much water per minute the pump can raise to a height of 10m? (given g = 10m/s)
Given, power of pump = 2kW =2000W
Time (t)= 60sec
Height (h) = 10m
g = 10m/s2
As you know, power =work done per unit time.
Work done = mgh = m ×10×10 =100m
Therefore, 2000W = 100m/60s
Therefore, m = 1200kg
So, the pump can raise 1200kg of water in one minute.