alleryAngular momentum L of a particle of mass m, position r and momentum p is:
AL = r + p
BL = r · p
CL = r × p
DL = p × r
Answer & Solution
Correct answer: C. L = r × p
1. By definition, L = r × p (cross product).
2. dL/dt = r × F = τ (torque about same origin).
3. p × r = −L; the order matters in a cross product.
_Source: syllabus Physics Ch 6 §6.10 Angular Momentum_
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