1-5. Determine the resultant internal loadings acting on the cross section through point D of member AB. 50 mm 50 mm 300 mm -150 mm B 1-34. The column is subjected to an axial force of 8 kN, which is applied through the centroid of the cross-sectional area. Determine the average normal stress acting at section a-a. Show this distribution of stress acting over the area's cross section. 8 kN D 70 N-m 200 mm *1-36. While running the foot of a 150-lb man is 10 mm -75 mm 75 min 10 mm 10 mm -70 mm .70 mm *1-36. While running the foot of a 150-lb man is momentarily subjected to a force which is 5 times his weight. Determine the average normal stress developed in the tibia T of his leg at the mid section a-a. The cross section can be assumed circular, having an outer diameter of 1.75 in. and an inner diameter of 1 in. Assume the fibula F does not support a load. a T F 750 lb