A cylinder with diameter of 5 cm is used to lift a weight ti

A cylinder with diameter of 5 cm is used to lift a weight (time for this is 7 seconds) The cylinder has a lifting force of 7700 N and the lifting height is 15 cm. Determine a) the effect made during b) How many liters/min c) The force

From the above given data the we can calculate flow rate in following manner

Flow rate = 7700*pie*(15*10^-2)2/4