# Angular Momentum Assignment Help

## Angular Momentum

Consider a particle *P *of mass *m,* having position vector
, rotating about the *z*-axis. If
is the momentum of the particle, then its angular momentum *l* is defined as

The magnitude of angular momentum is

and its direction is normal to the plane containing
and
, i.e., along the *z*-axis in this case.

Simplifying *l* = *P *(*r* sinq) = *Pd*, where *d* is perpendicular distance of the line of direction of
. From (O).

If we have a collection of particles or a rigid body, the total angular momentum will be the vector sum of the angular momentum of the individual particles.

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