Kinetic energy $K$
Energy carried with with motion (translational and rotational).
$$K_\text{trans}=\frac 12 mv^2\qquad\qquad K_\text{rot}=\frac12 I\omega ^2$$
$m$ is mass, $v$ speed, $I$ the moment-of-inertia and $\omega$ angular speed.
- Scalar property
- Symbol: $K$, $KE$, $E_k$
- SI-unit: Joule $\mathrm{[J]=[kg\cdot m^2/s^2]}$