Action is defined as:
$$ S = \int_{t_1}^{t_2} L dt,$$
And has units of joule-second. Angular momentum has the same units, but has a completely different application and interpretation. Are there any similarities between the Action and Angular momentum? Is there a way to compare them or are they both applications of something more general.
Are there situations where you have to use calculus of variations to minimize the angular momentum for a physical situation?
