Calculate the power required to raise 2.5m3 of water from a well 12.5m deep, in 30 seconds. NB: 1m3 of water = 1,000kg.
2.5 cubic meters of water has a mass of 2500 kg
Force = mg = 2500 kg * 9.81 m/s^2 = 24525 N
work = f * d = 24525 N * 12.5 m = 306562.5 j
power = work / time = 306562.5 j / 30 sec watts