Problem #3: (30 points). The rod consisting of three segments, each having a circular cross- sectional area, is in static equilibrium under the loads shown. Calculate the internal normal forces and the internal normal stresses in: a. segment AB; b. segment BC; and c. segment CD. Use statics and sections to calculate the resulting, internal normal forces. d=25mm B 90kN d=30mm d=20mm 40kN 80kN C