Question

The kinetic energy of a person becomeswhen the velocity is doubled.

• A. two times
• B. three times
• C. four times

Answer 1

The correct option is C four times

The kinetic energy is mathematically expressed as $K.E=\frac{1}{2}m{v}^2$, where $m$ is the mass of the body and $v$ is the velocity with which the body is moving. If velocity $v$ is doubled, the kinetic energy becomes four times as kinetic energy is directly proportional to the square of velocity.