A solid sphere rolls along a horizontal, smooth surface at a constant linear speed without slipping. What is the ratio between the rotational kinetic energy about the center of the sphere and the sphere’s

A solid sphere rolls along a horizontal, smooth surface at a constant linear speed without slipping.

What is the ratio between the rotational kinetic energy about the center of the sphere and the sphere’s total kinetic energy?

1. None of these

2.
(3)/(5)