(Solved): help Derive the shear force and bending moment equations for the simply supported beams shown below ...

Derive the shear force and bending moment equations for the simply supported beams shown below (Note: use the $$x$$-axis indicated in the figure). - For beam (a), what is the midspan bending moment in terms of $$w$$ and $$L$$ ? - For beam (b), what is the midspan bending moment in terms of $$F$$ and $$L$$ ? - For beam (c), what is the support reaction at B in terms of $$M$$ and $$L$$ ?