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Chapter 9: Q16CQ (page 315)

Swimmers and athletes during competition need to go through certain postures at the beginning of the race. Consider the balance of the person and why start-offs are so important for races.

Short Answer

Expert verified

The different postures help the swimmers, and the athletes store potential energy, which converts into kinetic energy later.

Step by step solution

01

Potential energy

The energy that an object has due to its position is known as potential energy. Since it has the ability to be turned into other forms of energy, such as kinetic energy, it is known as potential energy.

02

Explanation

The potential energy converts into kinetic energy and vice-versa. The swimmers and athletes make some initial postures to keep the potential energy stored. The more they hold the potential energy, the more is the kinetic energy. They need more kinetic energy converted from the stored potential energy.

Hence, if they store more potential energy, they will have more kinetic energy after changing their posture.

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