# Rotational energy

## Description

The rotational energy or angular kinetic energy is the kinetic energy due to the rotation of an object and is part of its total kinetic energy. The rotational energy around an object’s axis of rotation is depended on the the object’s moment of inertia and the angular velocity,

Related formulas## Variables

E_{r} | rotational energy (J) |

I | moment of inertia around the axis of rotation (kg*m^{2}) |

ω | angular velocity (1/s) |