ABSTRACT

Angular momentum is the remaining foundational stone in [this wing of] the edifice that is classical mechanics.1

ANGULAR MOMENTUM The angular momentum, → L , of a point particle or sys-

tem is determined with respect to a particular fixed point [or axis]. For a point particle possessing linear momentum ~p, →L = ~r × ~p , where ~r is the vector from the fixed point to the [instantaneous] location of the particle.