Physics

Problem

A uniform solid cylinder of mass

M

and radius

R

rotates about its symmetry axis with angular speed

\omega

. Which one of the following gives its rotational kinetic energy? a)

\dfrac{1}{8} M R^{2} \omega^{2}

\dfrac{1}{4} M R^{2} \omega^{2}

\dfrac{1}{2} M R^{2} \omega^{2}

\dfrac{1}{5} M R^{2} \omega^{2}