Using kinetic energy equivalence, find the equivalent inertia of the system shown below with respect to è of the sphere, where strings are inextensible and mass moment of inertia \text { of the entire bell crank is } \mathrm{J}_{0} \text {. Small vibrations and no friction. Spherical inertia is } \frac{2}{5} m_{s} r_{s}^{2} \text {. } Other parameters are given in figure.