Rest mass
= Rest mass
{title2=$m$}
{wiki=Invariant_mass}
Rest mass is the invariant mass $m$ in the <relativistic energy-momentum relation>. It equals the energy measured in the particle's rest frame divided by $c^2$.
= Rest mass
{title2=$m$}
{wiki=Invariant_mass}
Rest mass is the invariant mass $m$ in the <relativistic energy-momentum relation>. It equals the energy measured in the particle's rest frame divided by $c^2$.