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Question
What happens to the force between two objects, if the masses of both objects are doubled?
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Solution
If the masses of both the objects are doubled, then
F''' = `(G xx (2m_1) xx (2m_2))/R^2`
= `(4Gm_1m_2)/R^2`
= 4F
Thus, the gravitational force between the two objects becomes 4 times.
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