a) A hydraulic press has a ram of 150 mm diameter and a plunger of 30 mm diameter. The stroke of the plunger is 250 mm and weight lifted is 600N. If the distance moved by the weight is 1.20m in 20 minutes, determine :-
( I )The force applied on the plunger
( II ) Power required to drive the plunger
( III ) Number of strokes performed by the plunger ​