1. The problem statement, all variables and given/known data I found this question and thought the situation was quite an interesting one. 2. Relevant equations Seem to only be the 3 general equilibrium form of equations. 3. The attempt at a solution The problem I encountered with this question was that when I isolated 2 or 3 members out of the system I got an answer for the reaction forces as W/3 but when I isolated only one plank, the equations suggested that the reaction forces were different at each point of contact. Has me mind boggled, all replies would be greatly appreciated, thank you!