The Diameter of the pistons of a hydraulic press are 0.04 m and 0.40 m respectively . The arms of the lever are in their ratio 6:1 . Find the total force produced on the larger piston when a force of 75 kgf is applied at the end of the longer arm of the lever .

Three identical balls are placed on a frictionless horizontal surface touching each other. They stick to each other because of adhesive. Another ball of same radius and mass m is placed over the void created by the three balls. Find the forces applied by the balls kept on the floor to each other if the system remains in equilibrium.

A car loaded with water having total mass 1000 kg moves on a straight horizontal Road starting from rest under the action of a force of 100 Newton. The water spills throw a small hole in the bottom at a rate of 0.1 KG per second the velocity of cart after 300 seconds is nearly.

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