Reduced mass
= Reduced mass
{title2=$\mu$}
{wiki}
For masses $m_1,m_2$, the relative coordinate obeys a one-body equation with reduced mass
$$
\mu=\frac{m_1m_2}{m_1+m_2}.
$$
= Reduced mass
{title2=$\mu$}
{wiki}
For masses $m_1,m_2$, the relative coordinate obeys a one-body equation with reduced mass
$$
\mu=\frac{m_1m_2}{m_1+m_2}.
$$