## Encyclopedia > Kinetic energy

Article Content

# Kinetic energy

In physics, kinetic energy is energy possessed by a body by virtue of its motion. If the body with mass m is moving in a straight line with velocity v, its translational kinetic energy amounts to

$E_k = \frac{1}{2} m v^2$.

If a body is rotating, its rotational kinetic energy equals Iω2/2, where I is its moment of inertia and ω its angular velocity.

All Wikipedia text is available under the terms of the GNU Free Documentation License

Search Encyclopedia
 Search over one million articles, find something about almost anything!

Featured Article
 Great River, New York ... a family is $89,566. Males have a median income of$60,179 versus $58,125 for females. The per capita income for the town is$35,509. 7.9% of the population and 6.8% o ...