Question

a) Does a cricket player move his hand backward while catching the ball? b) State and prove the law of conservation of momentum​

Answer 1

Answer:

While taking a catch, a cricketer moves his hand backward so as to increase the time of impact (Δt). This is turn results in the decrease in the stopping force, thereby preventing the hands of the cricketer from getting hurt.

Answer 2

Question:

Does a cricket player move his hand backward while catching the ball?

Answer:

Yes, a cricket player move his hand backward while catching the ball.

Let's prove the law of conservation of momentum.

It is Newton's second law of motion.

According to Newton's second law of motion the rate of change of momentum of a body is directly proportional to the force applied on it and the change in momentum takes place in the direction in which the force is applied.

Let's describe your question's and answer:

The cricket player move his hand backward while catching the ball because the moving ball has a large momentum.

Due to more time taken to stop the ball, the rate of change of momentum of ball is decreased and hence a small force is exerted on the hands of player.