1. The problem statement, all variables and given/known data a climber with a weight of 734.2 N is held by a belay rope connected to her climbing harness and belay device; the force of the rope on her has a line of action through her center of mass. The indicated angles are θ = 36.5° and ϕ = 29.0°. If her feet are on the verge of sliding on the vertical wall, what is the coefficient of static friction between her climbing shoes and the wall? 2. Relevant equations I tried using cosine(theta)/sin(theta) but this did not work. 3. The attempt at a solution I tried using cosine(theta)/sin(theta) but this did not work.