In the figure, R1 = R2 and cm represents the center of mass…
In the figure, R1 = R2 and cm represents the center of mass of the object. The rotational inertia about an axis through point P1 is I1, the rotational inertia about an axis through point P2 is I2, and the rotational inertia about an axis through the cm is Icm. The relationship among the moments is