Question: In kickboxing, it is found that the force, f, needed to break a board, varies inversely with the length, l, of the board.If it takes

In kickboxing, it is found that the force, f, needed to break a board, varies inversely with the length, l, of the board.If it takes 8 pounds of pressure to break a board that is 3 feet long, how long is a board that requires 5 pounds of pressure to break?

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