1. The problem statement, all variables and given/known data http://imgur.com/rWsNsmp [Broken] 2. Relevant equations net torque = 0 net force = 0 3. The attempt at a solution Finding f1 was easy. f1 = wladder + person = 885.92 N Then the horizontal forces are also equal: f2 = f3 Now net torque = 0 (I'm using moment arm because there is no angle given): f3(3.8) = wladder(moment arm) + wperson(0.70) I can't manage to figure out the moment arm. I'm not sure if 0.7 meters can be used because I think that is the moment arm for the force of the person only. No angles were given, all I know is that the distance from the bottom of the ladder to the center of mass of the ladder is 2 meters.