A point moves rectilinearly with deceleration whose modulus depends on the velocity 'v' of the particle as a =-k√v where k is a constant, k > 0. At the initial moment the velocity of the particle is 'v₀'. What distance it will traverse before it stops? What time it will take to cover that distance?

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.

11

21

31

41