# Power - rotational systems (torque)

## Description

Power is the rate at which work is done. It is equivalent to an amount of energy consumed per unit time. Power in mechanical systems is the combination of forces and movement. In particular, power is the product of a torque on a shaft and the shaft’s angular velocity

Related formulas## Variables

P | The power (watt) |

τ | The torque (N*m) |

ω | The angular velocity (radians/s) |