Does anyone remember/ know that formula that relates coefficient of restitution's square with change in kinetic energy during collision? @AvnishKabaj @GaurangTandon @Tanuj
@JohnRennie The moment of inertia of a square of side a about its diagonal is $\dfrac{Ma^2}{12}$. Now if I cut it through the diagonal into two equal triangular pieces, wouldn't the moment of inertia of each about that diagonal be $\dfrac{Ma^2}{24}$? (coz MI is a scalar quantity)