Why are the athletes in a high jump event made to fall either on a cushioned bed or on a sand bed?

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Solution

In an event such as the high jump when an athlete jumps from a certain height, he gains certain momentum during the downfall.
If an athlete falls directly on hard strata the impact time will be less and the rate of change of momentum will be sudden which will cause injury to the athlete.
So, the cushioned bed or sand bed is used during the downfall of an athlete so that the impact time increases and the rate of change of momentum won't suddenly fall to zero.
This will prevent the athlete from injuries.

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Rewrite the following table so as to match the second and third column with the first column:

Column 1	Column 2	Column 3
Newton’s first law of motion	Describes the relationship between the forces on two interacting objects.	In a high jump athletic event, the athletes are made to fall on a sand bed.
Newton’s second law of motion.	Gives an idea of the effects of force	Motion of rocket
Newton’s third law of motion	Also called as law of inertia	Only the carrom coin at the bottom of a pile is removed when a fast moving striker hits it.

Why are the athlets in a high jump made to fall either on a cusion bed or sand bed ?

In high jump competition the athlete is made to fall on a cushioned bed to:

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