Figure 2 shows a frame structure ABCD with a fixed support at A, and a uniformly distributed load of 6 kN/m applied along section BC. Knowing EI = 2x10¹4 Nmm², use Castigliano's theorem to determine: (a) the horizontal deflection of point D; (b) the slope of point C. EI = 2x1014 Nmm2. Note, the strain energy due to the axial load can be ignored. 6 kN/m (7 marks) B 4m C 4m 2m A Figure 2 D