In Newtonian Physics, a force on a object is equal to its mass times acceleration. This is Newton's Second Law. But in relativity, when the acceleration approaches the speed of light, Newton's Second Law starts to become less accurate because to accelerate a mass more you must keep adding more energy. So in relativistic terms, what equation is there that holds up to speeds near the speed of light?(adsbygoogle = window.adsbygoogle || []).push({});

Thanks

**Physics Forums - The Fusion of Science and Community**

Dismiss Notice

Join Physics Forums Today!

The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

# F=ma in relativistic terms

Loading...

Similar Threads - F=ma relativistic terms | Date |
---|---|

I A question about the relativistic energy dispersion relation | Feb 20, 2018 |

I [itex]f(R)[/itex] gravity field equation derivation mistake? | Jul 4, 2017 |

A Tolman solution | Jan 25, 2017 |

I Why do physicists show the magnetic field perpendicular to F | Nov 26, 2016 |

B Error in laws of motion | Apr 10, 2016 |

**Physics Forums - The Fusion of Science and Community**