Question

Why does an athlete put some sand or cushion on the ground while high jumping?
Also state the law involved.

Answer 1

Answer:

After a high jump, an athlete falls on a cushion bed. In a high jump athletic event, the athletes are made to fall either on a cushioned bed or sand bed. This is to increase the time of the athlete's fall to stop after making the jump. This decreases the rate of change of momentum and hence, the force

this is action reaction pair and can be said as newton's third law:

every action has an equal and opposite reaction