Physics

Problem

A uniform solid cylinder of mass

2.0\,\text{kg}

and radius

0.30\,\text{m}

rolls without slipping across a horizontal surface at a linear speed of

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

. The cylinder’s moment of inertia about its central axis is

I_{\text{cm}} = \tfrac{1}{2}MR^{2}

. What is the cylinder’s total kinetic energy? a)

16\,\text{J}

32\,\text{J}

24\,\text{J}

22\,\text{J}