A particle of mass "m" is at x=0 with velocity v=u in the x-direction at t=0.It is subjected to a friction force -bv,where b is a positive constant.The position of the particle at "t" tends to infinity is ? Options are - 1)mu/b 2)u/mb 3)2mu/b 4)mu/2b

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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