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2. In a high jump athletic event the athletes are made to fall on a cushioned bed. Why |
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Answer» 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 seriousinjury. please give two line answer becz speed is very high momentum is also very high and friction is very less |
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