A meteorite burns in the atmosphere before it reaches the earth's surface. What happens to its momentum?

A Honda City car, A Maruti Alto car, A Tata Nano car and a Mahindra Scorpio car, all are running at the same speed of 50 m/s under identical conditions. If al these cars are hit from behind with the same force and they continue to move forward, the maximum acceleration will be produced in: Mass of the different vehicles: Honda City – 1150Kg, Maruti Alto-720Kg, Tata Nano-600Kg,Mahindra Scorpio-2510Kg

A. Honda City B. Maruti Alto

C. Tata Nano D. Mahindra Scorpio

A fielder pulls his hands backwards after catching the cricket ball. This enables the fielder to:

A. Exert larger force on the ball

B. Reduce the force exerted by the ball

C. Increase the rate of change of momentum

D. Keep the ball in hands firmly

The rocket work on the principle of conservation of:

A. Mass B. Energy

C. Momentum D. Velocity

Give reasons for the following:

(a) A ball thrown upwards in a running train returns back to the hands.

(b) When a person moves out of a boat, it moves backward.

Why fireman finds it difficult to hold a hose, which ejects large amounts of water at a high speed?

State and prove the law of conservation of linear momentum.