7. A material particle is chasing another one and both of them are moving on the same straight line. After they pass a particular point, their velocities v vary with timet as shown in the figure. When will the chase end?(a) 4.0 s (b) 6.0 s(c) 12 s (d) Insufficient Data.8. Two cars A and B simultaneously start a race. Velocity

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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