Question

A wheel of mass $10kg$ and radius of gyration $25cm$ is rotating at $600rpm$. What is its moment of inertia?

Answer 1

Moment of inertia, $I=M{k}^2$

Where, $k$ is radius of gyration, M is mass

$I=M{k}^2=10\times {0.25}^2=0.625kg{m}^2$

Hence, Moment of inertia is $0.625kg{m}^2$