- test conservation of total energy
$m \dot{r}^2 /2 + V(r)$ - Verlet table: impose distance cutoffs, approximate potential by zero if
- use Verlet time discretization scheme 1.2
- if total energy is negative, bounded motion; else, conllisional dynamics
- linear momentum, angular momentum conserved IN ABSENCE OF BOUNDARY CONDITIONS
- periodic boundary conditions: minimum image convention