Angular momentum

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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^2T^{-1}: MLT;1;2;-1
SI units J-s (Joule-second) or kgm^2/s (kilogram meter squared per second)