Bob (200kg) and Sally (40kg) want to make a see saw that will balance when they are both on 8it. If the board they have is 5m long, where should the fulcrum be placed?

Answer 1

x is distance from fulcrum for Bob.
Then 5-x = distance for Sally.
200*x = 40*(5-x)
Solve for x and 5-x.

Answer 2

thank you very much! :)