고체역학 (Gere) — Shear Forces and Bending Moments: Problem 4.5-2

4.5-2 A simple beam AB is subjected to a counterclockwise couple of moment \(M_0\) acting at distance \(a\) from the left-hand support (see figure). Draw the shear-force and bending-moment diagrams for this beam. Also draw the shear-force and bending-moment diagrams if a second moment \(M_0\) is added at distance \(a\) from support B.