Suppose a bar (black) sitting on a suspended ball (blue) has two rigid loads attached to it (red, green):
Because the bar sits on a ball, the bar can swing clockwise or anti-clockwise. Suppose the red load can be shifted left and right. When the bar swings clockwise, will moving the red load to the right dampen the swing by decreasing the swung height? That is, would shifting the red load to the right increase the moment of inertia? Or should it be the other way around?
Any thought appreciated.