What is the center of gravity and can it be moved? What would happen if it moved?
In: Physics
Imagine pushing on something with your finger. Now imagine an line extending out from your fingertip. If that line passes through the center of gravity(CoG) of an object, the object will be pushed but will not rotate.
The center of gravity of a closed, isolated system cannot move. In other words, the effect from stuff outside the system is 0. Our solar system has a center of gravity. As seen from outside our solar system, it appears that everything orbits around that CoG.
There is a non-practical example where it may appear that the CoG has moved, but it has not. I’m not going to cover it unless asked.
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