A horizontal, 10-m plank weighs 100 N. It rests on two supports that are placed 1.0 m from each end as shown in the figure. How close to one end can an 800-N person stand without causing the plank to tip?
The Attempt at a Solution
This is kind of difficult to me, please help me understand this
I know the person weighs 800 and there is X distance
so I have 800N from the weight of the person plus 10 N from the weight of the plank on the right side of the fulcrum
800X + 10 N = 90 N (the weight of the rest of the plank)