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In ], '''kinetic energy''' is ] possessed by a body by virtue of its ]. If the body with ] ''m'' is moving in a straight line with velocity ''v'', its ''translational kinetic energy'' amounts to In ], '''kinetic energy''' is ] possessed by a body by virtue of its ]. If the body with ] ''m'' is moving in a straight line with velocity ''v'', its ''translational kinetic energy'' amounts to


Revision as of 22:33, 27 March 2003


In physics, kinetic energy is energy possessed by a body by virtue of its motion. If the body with mass m is moving in a straight line with velocity v, its translational kinetic energy amounts to

E k = 1 2 m v 2 {\displaystyle E_{k}={\frac {1}{2}}mv^{2}} .

If a body is rotating, its rotational kinetic energy equals Iω/2, where I is its moment of inertia and ω its angular velocity.