Question: What fraction of the total kinetic energy is rotational for the following objects rolling without slipping on a horizontal surface? (a) A uniform solid cylinder;

What fraction of the total kinetic energy is rotational for the following objects rolling without slipping on a horizontal surface?
(a) A uniform solid cylinder;
(b) A uniform sphere;
(c) A thin-walled, hollow sphere;
(d) A hollow cylinder with outer radius R and inner radius R/2.

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