Water is pumped from a well 6.0 m deep at a rate of 45L/min. Calculate the power needed to do this if the..???

Question

Water is pumped from a well of 6.0m deep at a rate of 45L/min. Calculate the power needed to do this if the water leaves the pump at a negligible speed and 1 L of water has a mass of 1kg.

Answer 1

Taking 1kg/L 45L/min = 45/60 Kg /s
so the power needed is 45/60*9.8*6 =44.1 watt