[20 points] Important notes: . A free body diagram is required for the entire beam and for each section of the beam. Within each section, calculate the shearing forces and bending moments for a sufficient number of points to adequately plot the curves (i.e. 3 points are necessary to plot a quadratic function, 4 points are required to plot a cubic function etc.) Plot the shearing-force and bending-moment diagrams to scale on the axes that are provided on the next page. 20 kN/m 10 kN/m M. =20 kN.m B D X 3 m 4 m - 2 m