Because thats the point where both objects "rotate" around. It will be closer to the plane because the plane is faster, but not directly below the plane.

edit: actually it should be closer to the slower object.

Because thats the point where both objects "rotate" around. It will be closer to the plane because the plane is faster, but not directly below the plane.

edit: acutally it should be closer to the slower object.

Because thats the point where both objects "rotate" around. It will be closer to the plane because the plane is faster, but not directly below the plane.