Parallel Axis Theorem

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Parallel axis theorem adds term:

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The Parallel Axis Theorem allows us to find the moment of inertia $I$ of a body about any axis, provided we know its moment of inertia $I_{cm}$ about a parallel axis passing through its center of mass:
$I = I_{cm} + M d^2$
where:
- $M$: total mass of the body
- $d$: perpendicular distance between the two parallel axes.

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Parallel Axis Theorem

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