Effective mechanical temperature of released rough balls
= Effective mechanical temperature of released rough balls
If each initially stationary ball is released at height $h$ and the subsequent isolated dilute assembly reaches effective classical equilibrium, <energy> conservation gives $4k_BT=mgh$. The height-tail <probability> above the release height is then $e^{-4}$. The effective <temperature> refers to mechanical motion, not the material's internal <temperature>.