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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 $\mathrm{[J]=[kg\cdot m^2/s^2]}$

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