Energy–momentum relation

In physics, the energy–momentum relation is the relativistic equation relating any object's rest (intrinsic) mass, total energy, and momentum:

${\displaystyle E^{2}=(pc)^{2}+(m_{0}c^{2})^{2}\,}$

 

 

 

 

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holds for a system, such as a particle or macroscopic body, having intrinsic rest mass m₀, total energy E, and a momentum of magnitude p, where the constant c is the speed of light, assuming the special relativity case of flat spacetime.

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