Force Test - 4...

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

In a game of snooker, two balls each of mass 200 g are moving in the same straight line but in the opposite directions with a velocity of 2 ms^-1 each. The balls then collide and stick together.
What is the velocity of combined balls after the collision?

A ball of mass 2 kg bounces with a horizontal velocity of 2 ms^-1 in a stationary box with frictionless wheels. The mass of the box is 6 kg. What will be the velocity of the ball as the box starts moving?

A body of weight w₁ is suspended from the ceiling of a room using a chain of weight w₂. What is the force with which the ceiling pulls the chain?

A scooter generally slips on an oily road because

Work done by a body against friction 1 always results in a loss of its