A homogeneous rigid rod \(\mathrm{AB}\), of mass \(\mathrm{m}=4 \mathrm{~kg}\) and length \(L=500 \mathrm{~cm}\) rotates about an axis passing through endpoint \(\mathrm{A}\) and forming an angle \(\alpha=45^{\circ}\) with the rod itself. Calculate the moment of inertia of the rod with respect to this axis.