Correct answer: A. Fg, W, and Mg all mean the same thing. It means weight which is a force that is always directed downward. Fg means the “force due to gravity” also known as W (weight). The equation for W = mg. This is based on Newton’s second law F = ma. All of these are forces, which is why B and C are incorrect. All 3 depend on mass, which is why D is incorrect.
Verified by Knowlaxy Team (Jason Kuma)