Question

An athlete runs some distance before taking a long jump. This is because

• A. his body warms up.
• B. his potential energy increases.
• C. he loves running.
• D. the run before jump helps him take a longer jump due to inertia of motion.

Answer 1

The correct option is D

the run before jump helps him take a longer jump due to inertia of motion.

1. The property of a body to oppose any change in its state of uniform motion is known as the inertia of motion.
2. When the athlete runs, he gains some speed. So, due to inertia of motion, the jumper continues to move at the same speed after taking the jump. It helps him to take a longer jump.

An athlete runs some distance before taking a long jump. This is because the run before the jump helps him take a longer jump due to inertia of motion.

Thus, option (d) is correct.