Angular momentum

This article is about the analogue, from linear motion to angular motion, of: linear momentum

Definition

For a single body

The angular momentum of a body with angular velocity equal to the vector ${\overline {\omega }}$ and moment of inertia $I$ about the axis of rotation is the vector $I{\overline {\omega }}$.

Units and dimensions

Question	Answer
Scalar or vector?	Vector
Instantaneous or time-cumulative?	Instantaneous
MLT dimensions	$ML^{2}T^{-1}$: MLT;1;2;-1
SI units	$J-s$ (Joule-second) or $kgm^{2}/s$ (kilogram meter squared per second)