Question

why does a cricketer pull his hand backward while catching a ball coming at high speed?​

Answer 1

Explanation:

While catching a fast moving cricket ball, a fielder in the ground gradually pulls his hand backward because by doing this, he increases the time in which the velocity of ball will become zero. Thus, the rate of change of momentum will be large and less force will be exerted by the ball on the hand of the fielder.

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Answer 2

Explanation:

A fast moving cricket ball has a large momentum. In stopping or catching this ball, its momentum has reduced to be zero. Now, when a cricket player moves back his hands on catching the fast ball, then the time taken to reduce the momentum of ball to zero is increased.