Problem 1.7-4 The inclined ladder AB supports a house painter (85 kg) at C and the self weight (q = 40 N/m) of the ladder itself. Each ladder rail (t, = 4 mm) is supported by a shoe (t, = 5mm) which is attached to the ladder rail by a bolt of diameter dp = 8 mm. (b) Find the resultant force in the shoe bolt at A. (c) Find maximum average shear (7) and bearing (,) stresses in the shoe bolt at A. Section at base Typical rung -Ladder rail (1,4 mm) Shoe bolt (d=8 mm) Ladder shoe (1,5 mm) Shoe bolt at A A 9 b q=36 N/m a = 1.8 m b=0.7 m Assume no slip at A. H=7.5 m