1. The problem statement, all variables and given/known data The system is on static equilibrium. Determine tan θ ! 2. Relevant equations ΣF = 0 Στ = 0 3. The attempt at a solution ∑Fx = 0 Ta sin θ = Tb ΣFy = 0 Ta cos θ = mg Then, I got stuck.. I want to continue to Στ = 0 but I don't know which one to pick as fulcrum, the perpendicular forces acting on the block. It's hard to imagine where is actually the θ in the block section. Please help me..