Two fixed points A and B are 20M. Apart.At time t=0,the distance between a third point is c an A is 20 M and distance between c and B is 10 metres .The componet of velocity of point C along ca and cb both is at any instant is 5 m/s.What will be distance in metres between A and C at the instant ,all the three points are collinear? ANS15M

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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