SOLUTION: Alright I cannot figure out this one- I know the answer is 81 times as great but how do I get that answer: Thank You According to Newton's Law of Gravation, the force of attrac

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Question 110607This question is from textbook College Algebra
: Alright I cannot figure out this one- I know the answer is 81 times as great but how do I get that answer:
Thank You
According to Newton's Law of Gravation, the force of attraction between two objects varies jointly as their masses and inversely as the square of the distance between them. How does the force change if each of their masses is tripled but the distance between them is cut to one-third? This question is from textbook College Algebra

Answer by scott8148(6628) About Me  (Show Source):
You can put this solution on YOUR website!
k(3m)(3m)/((d/3)^2)=9k(m)(m)/((d^2)/9)=81k(m)(m)/(d^2)