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The gravitational force between two objects is 100 N, How should the distance between the objects be changed so that force between them becomes 50 N




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F1 = G M m / d1²
F2 = G M m / d2²

F1 / F2 = d2² / d1²

100 / 50 = (d2/d1)²

d2 = √2 d1

distance should be  √2 times the previous.

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