A body of mass 'm' is travelling with velocity 'v'. Which of the following options correctly represents the expression of the kinetic energy possessed by the body?

Kinetic energy is the energy possessed by a body in motion. It is given by $\frac{1}{2}{\mathrm{mv}}^2$ where m is the mass of the body and v is the velocity.

$\mathrm{mv}$ represents the momentum of the body.
$\mathrm{mgh}$ represents the potential energy of the body.

Therefore, $\frac{1}{2}{\mathrm{mv}}^2$ is the correct response.