8. The deformation of a simply supported beam under a distributed load shown in figure d²Y M(X) dX² ΕΙ below is governed

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8. The deformation of a simply supported beam under a distributed load shown in figure d²Y M(X) dX² ΕΙ below is governed by equation , where M(X) = - bending moment. Assume an approximate deflection solution of wX(L-X) 2 is the internal Y(X)=c₁ [-] for the beam. For the given data E=1.9×10° psi, L = 20 ft, w=5000 lb/ft, and I = 3100 in of the beam, when subdomain method is used to obtain C1, CI equals to AY w WLA WLA WLA 24EI 20EI 18EI WLA X E,I 16EI -L A) D) B) C)