Problem 7.2 - Internal Shear Force & Bending Moment by Equilibrium

Problem Statement

A beam is subjected to the loading shown, where w = 4 kN/m and L = 2 m. What is the internal bending moment at section a-a at x = 1 m?

Figure 1: A beam is subjected to a triangular load as shown.

[Problem adapted from © Kurt Gramoll CC BY NC-SA 4.0]