28. The hollow cylinder in the figure has thin walls (hoop), mass m, radius R and mass moment of inertia Is. If it rolls
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28. The hollow cylinder in the figure has thin walls (hoop), mass m, radius R and mass moment of inertia Is. If it rolls
28. The hollow cylinder in the figure has thin walls (hoop), mass m, radius R and mass moment of inertia Is. If it rolls without slip at an angular speed a on rigid ground and its centre has speed v, its kinetic energy is R A. mv² B. Icw² C. mv² D. mR²²
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