A solid sphere of radius R, a hollow cylinder (hoop) of radius R, and a hollow sphere of radius R all have the same mass, and all three are rotating with the same angular velocity ? around axes through their centers, as shown below. Which one has the greatest rotational kinetic energy? 1/2 MR² MR² 2/5 MR² 2/3 MR²
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Step 1:** Calculate the moment of inertia for each object: - Solid sphere: I = 2/5 * M * R^2 - Hollow cylinder: I = M * R^2 - Hollow sphere: I = 2/3 * M * R^2 ** Show more…
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