angular momentumangular momentum
the momentum characteristic of a rotating object; the product of linear momentum and the perpendicular distance from the origin of coordinates to the path of the object: the conservation of angular momentum causes a spinning skater, star, etc. to increase (or decrease) in velocity as the radius is reduced (or increased): symbol, ?
- The vector product of the position vector (from a reference point) and the linear momentum of a particle.
- The vector sum of the angular momentums of each infinitesimal component particle of an extended body.