Question

HW 5a roblem 4.89 Constants Part A The 67.5-kg climber in (Figure 1) is supported in the "chimney' by the friction forces exerted on his shoes and back. The static coefficients of friction between his shoes and the wall, and between his back and the wall, are 0.83 and 0.64, respectively Assume the walls are vertical and that the static friction forces are both at their maximum. Ignore his grip on the rope FL-FNIR-Value Units Figure 1 of 1

Answer 1

ue to shoc Friction func due to boch f, 소 시bR These tv frictional fovcc bol onces the weiaht the climber 0.83+0.6v )R 75xq 1.41 R 52. 58 N This is the minimam marmal force he must exod