Answer:
When a high jumper
falls on a soft landing site (such as cushion or a heap of sand), then the
jumper takes a longer time to come to stop. The rate of change of momentum of
athlete is less due to which a smaller stopping force acts on the athlete. And
the athlete does not get hurt. Thus, the cushion or sand, being soft, reduces
the athlete's momentum more gently. If however, a high jumping athlete falls
from a height on to hard ground, then his momentum will be reduced to zero in a
very short time. The rate of change of momentum will be large due to which a
large opposing force will act on the athlete. This can cause serious injuries
to the athlete.
You need to login to perform this action.
You will be redirected in
3 sec
