Physics

Problem

A solid disc of mass

2\,\text{kg}

and radius

0.50\,\text{m}

rotates about its central symmetry axis. What is its radius of gyration about this axis? a)

0.25\,\text{m}

0.71\,\text{m}

0.35\,\text{m}

0.50\,\text{m}