Angular momentum of a particle

Gives the angular momentum of a particle as the cross product of its position vector relative to a chosen origin and its linear momentum. It is used to describe rotation and to state conservation of angular momentum when no external torque acts.

\boldsymbol{L} = \boldsymbol{r} \times \boldsymbol{p}

What the symbols mean

angular momentum vector (kg\,m^2\,s^{-1})
position vector of the particle relative to the origin (m)
linear momentum of the particle (kg\,m\,s^{-1})

About this formula

  • FieldPhysics
  • TopicClassical mechanics
  • LevelUniversity
  • Also calledangular momentum, moment of momentum, cross product of position and momentum, angular momentum vector, rotational momentum formula
  • SourceWikidata Q161254

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