For the beams and loading shown in Figures P7.61, (a) use discontinuity functions to write the expression for w(x); include the beam reactions in this expression. (b) integrate w(x) twice to determine...

For the beams and loading shown in Figures P7.61,

(a) use discontinuity functions to write the expression for w(x); include the beam reactions in this expression.

(b) integrate w(x) twice to determine V(x) and M(x).

(c) use V(x) and M(x) to plot the shear-force and bending-moment diagrams.