Question

What change will occur in gravitational force between two bodies if mass of both object is doubled and distance between their center is halved

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Answer 1

The gravitational force between 2 bodys decreases with distance between the two bodies.

f=G m1m2/r2

Answer 2

if the distance between 2 objects is halved than the gravitation doubles ,as gravitation is inversely propotional, between the distance of 2 objects.