CBSE - Force

A bullet of mass 0.01 kg is fired from a gun weighing 5.0 kg. If the initial speed of the bullet is 250 m/s, calculate the speed with which the gun recoils- (1) – 0.50 m/s (2) – 0.25 m/s (3) + 0.05 m/s (4) + 0.25 m/s

A body of mass 5 kg undergoes a change in speed from 20 m/s to 0.20 m/s. The momentum- (1) increases by 99 kgm/s (2) decreases by 99 kgm/s (3) increases by 101 kgm/s (4) decreases by 101 kgm/s

When a bus starts suddenly the passengers standing on it, lean backwards in the bus. This is an example of - (1) Newton&#39;s first law (2) Newton&#39;s second law (3) Newton&#39;s third law (4) none of Newton&#39;s law

A man throws a ball weighing 200 g vertically upwards with a speed of 10m/s. Its momentum at the highest point of its flight will be: (1) 2 kg. m/s (2) 2000 kg.m/s (3) Insufficient data to find the momentum. (4) zero.

Find the time taken by a body of mass 16 kg to come to rest from a uniform velocity of magnitude 10 m/s, when a force of 4N is applied continuously (1) 20 s (2) 30 s (3) 40 s (4) 50 s