Test Preparation on Physics-Center Of Mass Momentum and Collision

1.

In an elastic collision :

2.

An example of inelastic collision is :

3.

Two solid rubber balls A and B having masses 200 g and 400 g respectively are moving in opposite directions with velocity of A which is equal to 0.3 m/s. After collision the two balls come to rest when the velocity of B is :

4.

Two bodies of identical mass m are moving with constant velocity v but in the opposite directions and stick to each other, the velocity of the compound body after collision

5.

A body of mass M moving with velocity v m/s suddenly breaks into two pieces. One part having mass M/4 remains stationary. The velocity of the other part will be:

6.

A bomb at rest explodes in air into two equal fragments. If one of the fragments is moving vertically upwards with velocity v0 then the other fragment v0

7.

A ball of mass m moving with velocity v collides with another ball of mass 2m and sticks to it. The velocity of the final system is :

mv=(m+2m)v1
v=0

8.

A particle of mass M is moving in a horizontal circle of radius R with uniform speev v. When it moves from one point to a diametrically opposite point, its: