A pump lifts 100kg of water through a height of 20m in 20 seconds Calculate the power of the pump
The power of the pump is 1000 Watts (W).
Power = Work / Time
Work = Mass x Gravity x Height
Work = 100 kg x 9.8 m/s2 x 20 m = 19,600 Joules (J)
Time = 20 seconds
Power = 19,600 J / 20 s = 980 W
Power = 980 W = 1000 W (rounded to the nearest 10)