Discover the answers you need at Westonci.ca, a dynamic Q&A platform where knowledge is shared freely by a community of experts. Experience the convenience of finding accurate answers to your questions from knowledgeable professionals on our platform. Discover detailed answers to your questions from a wide network of experts on our comprehensive Q&A platform.

In kickboxing, it is found that the force needed to break a board , varies inversely with the length of the board. If it takes 5 pounds of pressure to break a board 2 feet long, how many pounds of pressure will it take to break a board that is 8 feet long?

Sagot :

It will take 1.25 pounds of pressure to break a board that is 8 feet long.

Explanation:

Let the force needed be F
Let the length of the board be L

Since F varies inversely as L,
F = k/L

When F = 5 and L = 2,
5 = k/2
k = 10

When L = 8,
F = 10/8
F = 1.25 pounds of pressure