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lc99
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Homework Statement
Homework Equations
inertia equations
The Attempt at a Solution
I think the answer for this is B) or D) but I am not sure what the sentence "a special solid cylinder in which the density is proportional to the radius" means...
The solid sphere has little inertia because mass is closer. So , solid sphere will not be last compared to the hollow sphere. The frictionless cube will not be last because most of the energy will go into KE and not RE , so the energy is not wasted. It will go down faster.
The hollow sphere will have less inertia than the hollow cylinder because the mass is closer to center of mass. Choosing between, hollow cylinder and solid cylinder... i think it might be hollow cylinder
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