Shear and Moment Diagrams Example 1

[@georgesadler7830]

DR. Stewart, thank you for a deep example on Shear and Moment Diagrams from the Statics playbook.

[@daleseecharan6240]

If the couple moment of 9kN.m acts anywhere along the beam, why was it left out of the equilibrium equations for the sections?

[@abdullahe3674]

one question
howcome there is no Dx reaction force at pin support @ D
timestamp aprx 4 min
kind regards :)