A hydraulic lift is used to lift heavy loads. It consists of two pistons of varying cross-sectional area. The two pistons are connected to each other with a horizontal pipe. The container is filled with an incompressible liquid. The load to be lifted, is placed on the piston of larger cross-sectional area. Let a downward force f (say equal to 5 Kg) be applied on the smaller piston. The pressure where a is area of cross section of the smaller piston. As this pressure is transmitted equally to the large piston, the upward force acting on the loads is