Two bodies A & B are separated by a perpendicular distance of a units. B is moving in direction of x-axis with speed u. Body A is moving with speed v (v>u) such that it is always in the direction of B. After how much time A catches B. Also, if v=u, then, body A will never catch B ,so, what is the final distance and min. and max. distance between A & B when v=u.(Figure is in link) https://www.dropbox.com/s/uenh7lui3p211lf/DSC_0014.JPG?dl=0

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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