An aeroplane flying in the sky dives with a speed of 100m/sec In a vertical circle of radius 200m. Weight of the pilot sitting in it is 75 kg. The force with which the pilot presses his seat when aeroplane is at highest position is -A) 200 kg-wtB) 400 kg-wtC) 100 kg-wtD) 300 kg-wt

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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