When the distance between two stars decreases by one-third, the force between them

the force will increase by a factor 2.25

Explanation:

The gravitational force between the two stars is given by:

where

G is the gravitational constant

m1, m2 are the masses of the two stars

r is the distance between the stars

If the distance is decreased by one-third, it means that the new distance is 2/3 of the previous distance

So the new force will be

So, the force will be 2.25 times the previous value.

the answer is 12 as i may remember

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find the sum of the two horizontal vectors and the sum of the two vertical vectors

isoceles right angled triangle