Center Of Mass
#Physics
$\displaystyle \vec{R}=\frac{1}{M}\sum_{\alpha}m_{\alpha}\vec{r}_{\alpha}$
- $\displaystyle \vec{R}$ is the position of center of mass of the system
- $\displaystyle M$ is the total mass of the system
- $\displaystyle m_{\alpha}$ is the mass of the $\displaystyle \alpha$th particle
- $\displaystyle \vec{r}_{\alpha}$ is the position of the $\displaystyle \alpha$th particle