Inverse-cube central force
= Inverse-cube central force
A radial <force> proportional to $r^{-3}$. For potential $V=B/r^2$, its outward radial component is $2B/r^3$: positive $B$ is repulsive and negative $B$ is attractive.
= Inverse-cube central force
A radial <force> proportional to $r^{-3}$. For potential $V=B/r^2$, its outward radial component is $2B/r^3$: positive $B$ is repulsive and negative $B$ is attractive.