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Question 1093462: The separation between two 1 kg masses is (a) decreased by 2/3, and (b) increased by a factor of 3. How is the mutual gravitational force affected in each case?
Answer by Alan3354(69443)   (Show Source):
You can put this solution on YOUR website! The separation between two 1 kg masses is (a) decreased by 2/3, and (b) increased by a factor of 3. How is the mutual gravitational force affected in each case?
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Attraction is a function of the square of 1/d, --> k/d^2
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a) decreased by 2/3
--> 1/(2/3)^2 = 1/(4/9) = 9/4
increases by 9/4, or 2.25 as much attraction.
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and (b) increased by a factor of 3.
(1/3)^2 = 1/9
1/9 the attraction
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Notice the masses are not relevant.
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