Definition:Angular Momentum
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Definition
The angular momentum of a body about a point $P$ is its moment of inertia $I$ about $P$ multiplied by its angular velocity $\omega$ about $P$:
- $L = I \omega$
Angular momentum is a vector quantity.
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Dimension
The dimension of measurement of angular momentum is $\mathsf {M L}^2 \mathsf T^{-1}$.
Also known as
Angular momentum is also (rarely) known as moment of momentum or rotational momentum.
Also see
- Results about angular momentum can be found here.
Linguistic Note
The plural of momentum is momenta.
Sources
- 1970: George Arfken: Mathematical Methods for Physicists (2nd ed.) ... (previous) ... (next): Chapter $1$ Vector Analysis $1.1$ Definitions, Elementary Approach
- 1989: Ephraim J. Borowski and Jonathan M. Borwein: Dictionary of Mathematics ... (previous) ... (next): moment of momentum
- 2014: Christopher Clapham and James Nicholson: The Concise Oxford Dictionary of Mathematics (5th ed.) ... (previous) ... (next): angular momentum