Question

A cricket draws his hand while catchinga cricket ball. Why?

Answer 1

Hi mate

It is because of Newton's second law of motion which says that the force exerted by a body is directly proportional to the rate of change of momentum of the body.

Here the body is the ball. Before hitting the cricketer’s hand, the ball was travelling with a speed v and after hitting his hand, since the speed reduces to zero in very less time, therefore the rate of change of momentum that is the force is very large.

That is why the cricketer lowers his hand. In the process of doing this,he reduces the speed of the ball slowly to zero instead of immediately reducing it to zero.This gives him a few additional microseconds.

As a result of it, his hand is spared from being hurt very badly by the hard leather ball.

Force=m(v-u)/t

v->final speed

u->initial speed

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Answer 2

To decrease the momentum of the ball and thereby preventing the fielder getting hurt