Wicket keeper in a cricket match lowers his hand while catching a ball. Explain
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when a wicket keepers lowers his hand then, there is a great change in momentum, the velocity comes to zero and the force is decreased.
Thus the wickect keeper doesn't get much injured
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I doing so the keeper increases the time during which the high velocity of the bal decreases to zero. If the ball stops suddenly then its high velocity of the moving ball decreases to zero in short period of time. Thur, the rate of change of momentum of the ball will be large. Therefore, a large force would have to be applied for holding the catch that may lead the ball ro slip of the hand.
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