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It is 4 times bigger. Newton's Law of Gravitation says that the gravitational force between two objects is inversely proportional to the square of the distance between them. More specifically F = (G*m1*m2)/(r2). If you cut the distance in half, you have to square that, which is 1/4 so the force is 4 times bigger.

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15y ago
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14y ago

The gravitational force between two masses is proportional to the product of the masses and inversely proportional to the square of the distance between their centers of mass. If the masses don't change but the distance between their centers decreases by half: Original force = (konstant) times (1/D)2 New force = (same konstant) times [ 1/(D/2) ]2 = (2/D)2 = 4 (1/D)2 = four times the original force.

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8y ago

The force between them would be 1/4 the force with the initial separation.

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11y ago

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