Q26 A 6 m long simply supported wooden beam carries a 36 kN concentrated load at B. The cross-sectional dimensions of the beam are b = 100 mm, d = 300 mm, a= 85 mm, and c = 25 mm. Section a-a is located at x = 0.8 m from B. Determine (a) The magnitude of the shear stress in the beam at point H in section a-a. (b) The magnitude of the shear stress in the beam at point K in section a-a. (c) The maximum horizontal shear stress that occurs in the beam at any location within its entire span. (d) The maximum tensile bending stress that occurs in the beam at any location within its entire length.