is also a vector product. It could also be referred to as moment of (linear) momentum.
l = r × p
The magnitude of the angular momentum vector is l = r p sinθ
where p is the magnitude of p and θ is the angle between r and p. We may write l = r p⊥ = r⊥p
where r⊥ (= r sinθ) is the perpendicular distance of the directional line of p from the origin and
p⊥(= p sinθ ) is the component of p in a direction perpendicular to r.
the origin (r = 0), or if the directional line of p is parallel to direction of r ( θ = 0° or 180°).
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