why are the athletes in a high jump event made to fall either on a cushion or sand bed?
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322
The surface is very smooth compared to any concrete platform also cushion absorbs the impact and hence we experience very little force
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During Athletics meet, a high jumping athlete is provided either a cushion or heap of sand on the ground to fall upon.
⇒This is done to prevent injury to the athlete when he falls down after making a high jump.
⇒When he falls on a a soft landing site[either cushion or sand], then the jumper takes a longer time to come to stop.
⇒The rate of change of momentum of the athlete is less due to which a smaller force will act on athlete.
⇒ So, athlete does not get injury and cushion or sand reduces the momentum of athlete's .
If the Athlete is made to fall on a hard surface like cement floor, then his momentum is reduced to zero in very less time and thus rate of change of momentum increases due to which large opposing force will act on athlete.
which can lead to serious injury.
Conclusion:
Athletes in a high jump event are made to fall either on a cushion or sand bed
⇒This is done to prevent injury to the athlete when he falls down after making a high jump.
⇒When he falls on a a soft landing site[either cushion or sand], then the jumper takes a longer time to come to stop.
⇒The rate of change of momentum of the athlete is less due to which a smaller force will act on athlete.
⇒ So, athlete does not get injury and cushion or sand reduces the momentum of athlete's .
If the Athlete is made to fall on a hard surface like cement floor, then his momentum is reduced to zero in very less time and thus rate of change of momentum increases due to which large opposing force will act on athlete.
which can lead to serious injury.
Conclusion:
Athletes in a high jump event are made to fall either on a cushion or sand bed
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