1. A particle is moving in a straight line with initial velocity u and retardation av, where v is the velocity at any time t [a] the particle will cover a total distance u/a [b] the particle will come to rest after 1/a [c] the particle will continue to move for a very long time [d] the velocity of the particle will become u/2 after time 1/a

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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