I found after searching that this question has been asked before. But all the answers were not convincing.
Suppose I have a body which is free, not constrained always rotate about its center of mass (COM). Why is that so?
A convincing answer that I found was that in most cases the moment of inertial about the center of mass is the least and that's why the body rotates about the center of mass.
But I ask it again with hope of the question not getting closed and getting a better succinct answer.
I was thinking that motion about the COM is the most stable one and the rotation about other points degenerates. I don't think it's right. Is it?
1). This question has been wrongly closed. The other questions linked don’t answer my question at all. It asks me to ask a new question if my question is still not resolved. I did make it clear that I am not satisfied with the answers in the linked questions.
2). The answer to this question is that a free body never rotates about its center of mass ( the instantaneous axis of rotation never passes through the center of mass). In fact we choose a point about which we want to decompose the motion into rotation and translation and we could very well have chosen any point other than the center of mass and analysed rotation about it. Moreover the instantaneous axis of rotation for a free body never passes through the center of mass.
I would urge the moderators to give me the right to add my answer to this question. This is the correct answer, the one which satisfied me the most and it is nowhere in the linked answers. So kindly give me the right to open this question and let me add my answer to it.