Chapter 5, Problem 37P

A simply supported beam is loaded as shown. The shear force V and bending moment M as a function of x are given by the following equations:

V(x) = 400-200x lb M(x) =-100x²+400x lb-ft for $0\le x\le 8$ ft.

V(x) =-1,200 lb, M(x) =-1,200x +6,400 lb-ft for $8\le x\le 12$ ft V(x)=-250x+5,000 lb, M (x)=-1.25(x-12)2+2,000x-32.000 lb-ft for $12\le x\le 20$ ft.

Plot the shear force and the bending moment as a function of x (two figures on one page such that the shear force diagram is displayed above the bending moment diagram).