Question

How does the force of gravitation between two objects change
when the distance between them is reduced to half ?
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Answer 1

The force of gravitation between two objects is inversely proportional to the square of the distance between them therefore the gravity will become four times if distance between them is reduced to half.

Hope it will help you.......

Answer 2

The force of gravitation between two object is inversely proportional to the square of the distance between them therefore the gravity will become four times if distance between them is reduced to half.