[" Four solid spheres "],[" placed with their centers on the four comers of "2],[" squáre of side a "(-2r)" .Find M of system about one "],[" side of the sqtife: "]

Four spheres each of mass M and diameter 2r , are placed with their centers on the four corners of a square of side a( gt 2r) . The moment of inertia of the system about one side of the square is

Four spheres,each of mass "m" and radius "r" ,are placed with their centres on the four corners of a square of side "b" .The moment of inertia of the system about any side of the square is

Four identical solid spheres each of mass 'm' and radius 'a' are placed with their centres on the four corners of a square of side 'b'. The moment of inertia of the system about one side of square where the axis of rotation is parallel to the plane of the square is :