A beam in bending has a rectangular cross-section with dimensions as illustrated in below figure. Given the Young's modulus of E = 200 GPa. a) Determine maximum deflection of the beam. (15 Pts) b) Determine stress state and draw the stress element at points C (on surface of the beam) and D (at the centroid of the cross-section area) on Section (2-2) as below. (10 pts) 10 KN 10 KN 1m 2m2m2m D -0.2 m 0.4m 0.4m