Question

In a long jump athletic event, the athletes are allowed to fall either on a sand bed or cushioned bed to ______ the impact force by ______ the time to stop.

• A. increase, decreasing
• B. decrease, increasing
• C. increase, increasing
• D. decrease, decreasing

Answer 1

The correct option is B decrease, increasing

In a long 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.
According to the second law of motion,
$Force=\frac{\Delta p}{\Delta t}$
This decreases the rate of change of momentum and hence, the force is decreased. As a result, the athlete does not get injured.