A particle performs rectilinear motion in such a way that its initial velocity has opposite direction with its uniform acceleration. Let X1 and X2 be the magnitude of displacements in the first 10 seconds and the next 10 seconds then:

(A) X1 is less than X2. (B) X1 is equal to X2.

(C) X1 is greater than X2 (D) Information is insufficient.

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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