Course Physics1

Power is defined as the derivative of work with respect to time

$P=\frac{\mathit{dW}}{\mathit{dt}}=\frac{\vec{F}\mathrm{.}d\vec{r}}{\mathit{dt}}=\vec{F}\mathrm{.}\vec{v}$

$\vec{F}$: It is the force that acts on the body.

$\vec{v}$: The speed of the body in motion

The power unit is the Watt 1W = 1J/s = 1Nm /s