Algodoo

anyone can make that, ok theres a ball holding the tip of the green box,,that box has 15 mass then the red box is longer and it reaches farther then the green box going left,its twice as farther cuz well its common sense the ball's at the tip of green box,the red box is double the size and double the green boxe's tip to the left and red box is double the mass,lol i cant explain it if you couldnt understand that

I know, that's why I said it was, simple...