Physics

Problem

A composite wheel consists of a solid disk (mass

2.0\,\text{kg}

, radius

0.20\,\text{m}

) rigidly fastened to a thin hoop (mass

1.0\,\text{kg}

, radius

0.20\,\text{m}

). The wheel rolls without slipping at

2.0\,\text{m}\,\text{s}^{-1}

. Determine the percentage of the wheel’s total kinetic energy that is rotational.