A vehicle moving with a constant acceleration from A to B in a straight line AB, has velocities u and v at A and B. C is the mid point of line AB. If the time taken to travel from A to C is twice the time taken to travel from C to B then the velocity of the vehicle at B is ?

1) 5u 2) 6u 3) 7u 4) 8u

Kindly please ,explain me this problem im stuck with .! Thank you :)

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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