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Kinetic energy of a sphere

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Consider a sphere of radius R and mass M rolling without slipping. Which form of kinetic energy is larger, translational or rotational?
Translational kinetic energy is larger.
Rotational kinetic energy is larger.
Both are equal.
You need to know the speed of the sphere to tell.

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Solution Summary

The solution compares the translational and rotational energy for the sphere.

Solution Preview

Translational kinetic energy is larger.

Let (KE)t be the Translational kinetic energy
Let (KE)r be the Rotational Kinetic energy

(KE)t = ...

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