# A solid sphere is rotating about an axis passing through its center of mass with angular velocity omega. The sphere itself is in a circular motion about the axis PQ with an angular velocity omega'. Calculate its moment of inertia about PQ?

Mar 23, 2018

$I = {I}_{c o m} + m {d}^{2}$
with ${I}_{c o m} = \frac{2}{5} m {r}^{2}$ and $d$ the distance between $P Q$ and $P ' Q '$