1. The problem statement, all variables and given/known data A uniform plank of length 4.6 m and weight 210 N rests horizontally on two supports, with 1.1 m of the plank hanging over the right support. To what distance x can a person who weighs 448 N walk on the overhanging part of the plank before it just begins to tip? 2. Relevant equations W1(x1)=W2(x2) = Xcm W1+W2 3. The attempt at a solution 210(3.5) + 658(1.1) 210 + 448 Xcm=1.87m Not even sure if this is right, and I'm stuck after this. The way I understand it, once the center of gravity passes the second support, the plank will start to tip. But I don't know how to figure out how to calculate how far the person can walk before the center of gravity gets to that point.