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GK QUESTION#2985

Why does a skilled cricketer move his hands backwards while catching a fast-moving ball?

  1. ATo apply a greater opposing force on the ball for a quick stop.
  2. BTo reduce the force by increasing the time over which momentum changes.Correct answer
  3. CTo increase the speed of the ball during impact.
  4. DTo decrease the weight of the ball using gravity.
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Answer

B. To reduce the force by increasing the time over which momentum changes.

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Explanation

The ball undergoes approximately the same momentum change when stopped. Increasing the stopping time reduces the average force because average force multiplied by the time interval equals the momentum change.

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