Force Test - 1...

A system consists of masses M and m (< M). The centre of mass of the system is

A body of mass 2 kg is sliding with a constant velocity of 4 m/s on a frictionless horizontal table. The force required to keep the body moving with the same velocity is

Drums of oil are carried in a truck. If a constant acceleration is applied on the truck, the surface of the oil in the drum will

A 20 kg monkey slides down a vertical rope with a constant acceleration of 7.0 ms^-2. If g = 10 Nkg^-1, the tension in the rope will be

A parachutist of weight W strikes the ground with his legs fixed and comes to rest with an upward acceleration of 3g. The force exerted by him on the ground during landing is

A lead ball strikes a wall and falls down. A tennis ball having the same mass and same velocity strikes the same wall and bounces back. Which of the following statements is correct?

A cracker explodes into two fragments of exactly equal masses. The two fragments will move

A body of mass M collides against a wall with velocity V and rebounds with the same speed. Its change of momentum is