Shear and Moment Diagrams Firewood Example Consider an individual carrying firewood across their arms, as shown below. We can represent the loads placed on one arm by the wood using the a simplified loading scenario. Here, the elbow is treated as a simple hinge, and we ignore the horizontal component of the biceps muscle vector so that we only consider the vertical component. If the forearm weighs 60 N, and the wood is treated as a distributed load, what are the shear forces and moments present in the beam? shutterstock.com-1507776716 Fm 10 N/cm 1 cm 3 cm + 12 cm 4 cm