1. The problem statement, all variables and given/known data http://www.sumoware.com/images/temp/xzmbharheaqshjjf.png [Broken] A homogeneous stick with mass M is placed in a well with smooth surface (see picture). θ is the angle between the stick and the floor. Determine the force the well gives to the stick. 2. Relevant equations ΣF = 0 Στ = 0 3. The attempt at a solution I draw the free body diagram but I'm not sure http://www.sumoware.com/images/temp/xzgemxpxlpjnkafk.png [Broken] The first body-diagram has normal force 1 is perpendicular to the surface (like common ladder problem) or http://www.sumoware.com/images/temp/xzjmplgoxrepcxct.png [Broken] The second body diagram has normal force 1 is up-left in direction. I think it's because the stair push the wall down-right, it must give the reaction in opposite direction. ? Which one is correct ? The first one or the second one ?