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Two spheres have the same radius (R) and same mass (M). One sphere is solid, and...

Two spheres have the same radius (R) and same mass (M). One sphere is solid, and the other is hollow and made of a denser material. They start from rest at the top of an incline (rolls without slipping).

(a) Which has greater moment of inertia?

(b) Which has the greater rotational kinetic energy?

(c) Which has the greater total kinetic energy at the bottom?

(d) Which has the greater speed at the bottom?

(e) Given I solid shpere =(2/5) MR2 . What is its total kinetic energy?

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