1. Write the equations for moment between points B and C as a function of distance x along the longitudinal axis of the beam in Figure P5.5 for (a) origin of x at A and (b) origin of x at B.

2. Write the equations required to express the moment along the entire length of beam in Figure P5.6. Use an origin at point A, and then repeat computations using an origin at point D. Verify that both procedures give the same value of moment at point C.