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3. Suppose that two objects exert a gravitational force of 32 N on one another.
What would that force be if the mass of one of the objects were doubled?
A. 16 N
B. 32 N
C. 64 N
D. 128 N

Answer :

AL2006

The gravitational force between two masses is directly proportional to the product of the masses.

If one of the masses is doubled, the product of the masses is also doubled.

If the force was originally 32 N, then the new force is 64 N. (C)

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