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For questions about the attractive force between two objects which possess gravitational mass or energy.
4
votes
Accepted
Where does the famous equation $F = G\cfrac{m_1m_2}{r^2}$ come from?
Moreover, since all the parts of any planet A gravitate towards any other planet B ; and the gravity of every part is to the gravity of the whole as the matter of the part to the matter of the whole ; … Therefore the force of gravity towards any whole planet arises from, and is compounded of, the forces of gravity towards all its parts. …