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Specific kinetic energy | |
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Common symbols | ke, or e_{k} |

SI unit | J/kg, or m^{2}/s^{2} |

Derivations from other quantities | e_{k} = ½v^{2} |

**Specific kinetic energy** is kinetic energy of an object per unit of mass.

It is defined as .

Where is the specific kinetic energy and is velocity. It has units of J/kg, which is equivalent to m^{2}/s^{2}.