Two blocks of wood, width w and thickness t, are glued together along the joint inclined at the angle 0 as shown in Fig. P-122. Using the free-body diagram concept in Fig. 1-4a, show that the shearing stress on the glued joint is t = P sin 20/2A, where A is the cross- sectional area. Figure 1-4a Normal Component Resultent Shear Component Normal and sheer components of the resultant on arbitrary section. De Figure P-122