Definition:Angular Momentum of Particle/Also presented as

Definition

Some sources present the definition of the angular momentum of a particle $P$ relative to a point $A$ as:

$\mathbf L = \paren {\mathbf r - \mathbf r_A} \times m \mathbf v$

where:

$m$ denotes the mass of $P$

$\mathbf v$ velocity of $P$ relative to the frame of reference in which the motion of $P$ is defined

$\mathbf r$ denotes the position vector of $P$

$\mathbf r_A$ denotes the position vector of $A$

$\times$ denotes the vector cross product.

Also known as

Angular momentum is also (rarely) known as moment of momentum or rotational momentum.

Sources

• 2014: Christopher Clapham and James Nicholson: The Concise Oxford Dictionary of Mathematics (5th ed.) ... (previous) ... (next): angular momentum