A ring of radius 'R' and mass 'M' lies on its side on a frictionless table. A bug of mass 'm' rests on the ring. Bug starts walking on the ring with constant speed 'v' relative to the ring. Please Describe the motion of ring relative to ground frame.


(In some questions ring being pivoted, but here not, ring is free to move any way horizontally). Thanks.

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"frictionless table". That is a clue. Think about Newton's Laws. Bug walks one way, what happens next? Draw a picture and think about the bug walking