Three solid spheres of mass M and radius R are placed in contact as shown in figure. Find the potential energy of the system ?

Three solid sphere of mass M and radius R are placed in contact as shown in figure. Find the potential energy of the system ?

Three solid sphere of mass M and radius R are placed in contact as shown in figure. Find the potential energy of the system ?

Three identical rings of masses m each and radius r are kept in contact as shown in Fig. Find the moment of inertia of the system about a common tangent.

Three discs each of mass M and radius R are placed in contact with each other as shown in figure here. Then the MI of the system about an axis XX' is

Thee spheres each of mass M and radius R are placed in contact with each other as shown in the figure here. Then the moment of inertia of the system about the axis CC' is

Three identical solid discs, each of mass M and radius R, are arranged as shown in figure. The moment of inertia of the system about an axis AB will be

Three spheres, each mass M and radius R, are arranged as shown in the figure . The moment of inertia of the system will be

A solid sphere of mass M and radius R is pulled by a force F as shown in figure . If the sphere does not slip over the surface , then frictional force acting on the sphere is