How can I reset or place the center of gravity for an active ridged body object? I am having an issue where the center of gravity for an object is placed far too high for accurate physics.
The center of gravity is placed at the object origin. To put move the object origin, press ⎈ Ctrl⇧ Shift⎇ AltC.
Center of Mass will put the origin (center of gravity) at the center of mass, assuming a uniform density.
3D cursor will put the origin at the 3D cursor, allowing for more customized setups.