SOLUTION: The attraction (A) betwen a magnet and a bar of iron varies inversely as the square of the distance (d) between the magnet and the bar of iron. The attraction between the two is 2

Question 180443: The attraction (A) betwen a magnet and a bar of iron varies inversely as the square of the distance (d) between the magnet and the bar of iron. The attraction between the two is 2 newtons when the distance is 3 cm.
The measure of the attractin when the distance is 0.5 cm is?
Answer by Mathtut(3670) (Show Source): You can put this solution on YOUR website!
Ad^2=k where k is a constant
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lets find k
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we are given A=2 and d=3
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so our constant k =18
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Ad=18
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now lets find A when d=.5.....remembering that in an inverse relationship when one variable increases the other decreases and vice versa. In this instance d is decreasing from 3 to .5 so we would expect A to increase
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newtons....and just like we knew A increased from 2 to 12
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