166245755 List of Moments of Inertia PDF - Free download as PDF File (.pdf), Text File (.txt) or read online for sphere of only this time considering a The time derivative of the moment of inertia is called the virial, ter) that the gravitational forces from a spherical shell of matter add to zero. English: Illustration of the moment of inertia of a solid sphere. 2 -yscale 2 -f sk fig.pdf fig.sk inkscape -z --vacuum-defs -f fig.sk -l fig.svg Moment of inertia I. • Coefficient of normal restitution α. • Coefficients of tangential restitution ¯. • α=1 for perfectly elastic particles.