2026-08-19 19:01:21: Rotational Inertia
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[[Torque and Rotational Dynamics]]
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For a point mass:$$I=mr^2$$
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$I$ is rotational inertia (kg * $m^2$)
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m is mass
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r is radial distance
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Several discrete objects:
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$$I_{tot}=\Sigma I_i=\Sigma m_i r^2$$
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