Mathematical formulas

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Subjects
Basic Physics
Rotation
Conservation of angular momentum

8. Rotation

Conservation of angular momentum

Formula

L_{i} = L_{f}

For a body whose moment of inertia changes

I_{i} ω_{i} = I_{f} ω_{f}

Conditions

zero net external torque.

Related formulas

Related
Angular momentum of a rigid body
$L = I ω$
Open formula Open in section
Related
Torque and angular momentum
$\sum τ_{ext} = \frac{d L}{d t}$
Open formula Open in section