SOLUTION: In kick boxing, it is found that the force F needed to break a board varies inversely with the length L of the board. If it takes 30 pounds of force to break a board 2 feet long, h

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Question 1005968: In kick boxing, it is found that the force F needed to break a board varies inversely with the length L of the board. If it takes 30 pounds of force to break a board 2 feet long, how many pounds of force will it take it break a board that is 5 feet long?
Answer by fractalier(6550) About Me  (Show Source):
You can put this solution on YOUR website!
An inverse relationship like this can be written as
FL = k
Here 30*2 = 60 = k
Then
F(5) = 60
F = 12 pounds of force