Since the gravitational force between two objects is directly proportional to their masses, if the mass of one of the objects is doubled, the gravitational force between then will also get doubled.
By Universal law of gravitation,
F = \(\frac{Gm_1m_2}{r^2}\)
The force acting between two point masses m1 and m2, is independent of the nature of medium between them. Therefore, Gravitational force acting between two...