Halliday, Resnick & Walker — Kinetic Energy and Work: Problem 34

34 A 15 kg brick moves along an x axis. Its acceleration as a function of its position is shown in Fig. 7-31. The scale of the figure’s vertical axis is set by $a_s = 24 \text{ m/s}^2$. What is the net work performed on the brick by the force causing the acceleration as the brick moves from $x = 0$ to $x = 8.0 \text{ m}$?