A merry-go-round of radius R. shown in the figure, is rotating at constant speed. The friction in its bearing is so small that it can be ignored. A sandbag of mass m is dropped onto the merry-go-round, at a position designated by r. The sandbag does not slip or roll upon contact with the merry-go-round.
From law of conservation of angular momentum,
Thus, more means more , and more means less .
The order is, (f)>(b)>(c)=(d)>(e)>(a)