The gravitational force between two objects is 2400 N. What will be the gravitational force between the objects if the mass of one object is doubled?

The gravitational force is directly proportional to the mass of each object when the other factors, such as distance, stay the same. Doubling one object's mass therefore doubles the force: 2 × 2400 N = 4800 N. The correct choice is C, 4800 N.

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