Question

explain: cricket player moves his hands backward on catching a fast coming ball

Answer 1

Cricket player moves his hands backward on catching a fast coming ball..

REASON ..

it is because force is inversely proportional to time interval .. it is also because by increasing THE TIME INTERVAL , THE average FORCE is decreased

so a cricket player while catching a ball ,to increase time of contact , the player should lower his hands in the direction of the ball...

Answer 2

●This is a consequence of the second law of motion which states that:

✍The rate of change of momentum of a body is directly proportional to the applied force and takes place in the direction in which the force acts.

✍The cricketer allows a greater time for the ball to stop in his hands and thus this act requires a small force. This also prevents a possible injury which could have occured if he did not draw his hands back. This is the consequence of momentum.

Q1. What is momentum?

answer➡️ Momentum of a nody is defined as the product of mass and velocity and is a vector quantity having both magnitude and direction✔

●Momentum is denoted by 'p' where :-

$p = mv \:$

Here, m is the mass of the object and v the velocity.

Coming back to the ball, this term is related. Force depends on the change of momentum as well as the time in which the change is brought about. Hence a cricketer moves his hands backward on catching a fast ball.