Two statics problems involve finding the position x along a beam of length L that balances objects of weights W1 and W2 on either side. Problem 7 balances two children weighing 50 and 75 pounds on a 10 foot seesaw. Problem 8 balances a 200 pound person and 550 pound rock on a 5 foot beam, where solving the moment equation around the fulcrum yields a balancing point of 4/3 feet from the end.