Moment of inertia for common shapes: Hoop: I = MR^2; Disk: I = (1/2)MR^2; Sphere: I = (2/5)MR^2; Rod (center): I = (1/12)ML^2.
How to apply it: Use the known formulas for common shapes to compare how objects of different shapes roll down an incline.
Course: AP Physics 1 · Unit: Torque and Rotational Motion
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