Problem 3 A cantilevered beam of rectangular cross-section is subjected to a shear force Vas shown below. We will use the stress equilibrium equations to find the shear stresses in the beam. To begin, the bending stress is given by V X My I where Mis the internal bending moment. Assume a state of plane stress. Find the transverse shear stress Txy by integrating the equilibrium equation(s) over the beam thickness and applying the boundary condition at y±h/2.