A solid circular steel shaft with given dimensions is under the given point loads. The shaft has a fixed support at A. Task 1 (10 pts): Draw a normal force diagram of the system. Task 2 (10 pts): Determine the total displacement of end C. Task 3 (10 pts): Determine the displacement of end C with respect to B. Esteel 200 GPa 900 mm 50 mm Section b-b B 50 mm 300 mm 100 KN 100 KN O 30 mm B BC 30 mm Section a-a 30 kN