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If both masses double, FG increases by 4.What is FG/Gravitational Force ?It is the attractive force exerted by the earth on all the objects in the universe.What happens to Fg if both masses double?The gravitational force increases by 4, when both the masses double. F = Gm1m2/r2If both masses double, thenm1 = 2m1 , m2 = 2m2 F = G(2m12m2)/r2 ⟹F = 4FThus gravitational force becomes 4 times.To learn more about Gravitational force from the given link https://brainly.in/question/25087333#SPJ1