# Kinetic energy in classical and relativistic mechanics

Kinetic energy of a point object in classical Newtonian mechanics and in relativistic mechanics.

**Calculation of kinetic energy of a point object of mass m and velocity v in classical mechanics.**

**Calculation of kinetic energy of a material point of mass m and velocity v in relativistic mechanics.**

Here the velocity of the material point cannot exceed the speed of light (299792458 m/sec.)

At low speeds, the results of both formulas coincide, but the closer to the speed of light, the greater the difference.

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**PLANETCALC, Kinetic energy in classical and relativistic mechanics

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