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Komal Solanki
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Asked: 2021-11-25T04:51:00+00:00 In:

A goalkeeper in a game of football pulls his hands backwards after holding the ball shot at the goal. This enables the goalkeeper to

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Poll Results

0%[A] Exert larger force on the ball
25%[B] Reduce the time for which force is exerted by the ball on hands ( 1 voter )
0%[C] Increase the rate of change of momentum
75%[D] Decrease the rate of change of momentum ( 3 voters )
Based On 4 Votes

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The goalkeeper draws his hands backwards after catching the ball to reduce the rate of momentum change by increasing the time. By doing this less force is exerted on his hands (force is proportional to the rate of change of momentum).

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    2 Answers

    1. [D] Decrease the rate of change of momentum

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    2. The goalkeeper pulls his hands backward to increase the time taken to stop the ball. This reduces the force exerted by the ball on his hands, as per impulse = change in momentum / time.

      Thus, the correct answer is:(b) reduce the force exerted by the ball on hands.

      https://www.tiwariacademy.com/ncert-solutions/class-9/science/chapter-8/

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