A farmer need to irrigate his land which is 20 metres above the water level of the dam. He needs?

... 50 litres of water per hour.The two stroke pump operate at 150r/min has a stroke length of 127mm.Take slip as 6%. Calculate pressure at which pump must operate,and the power required by motor to drive the pump if the motor has an efficiency of 85%,the revolutions at which pump must operate and calculate force at head of plunger with each operating stroke.