For the cantilever beam that is shown in Figure Q4, a) Find the reactions at the fixed support A. b) Draw the SFD and BMD, showing the maximum and minimum values. c) Write an expression for the bending moment value in terms of x between B and C. d) If the cantilever is made of a solid square section 100 x 100 mm, calculate the maximum bending stress, show the location and type. 5 kN/m A B C X 1m 2 m D 5 kN 2m Figure Q4 OOOOO