A 10 kg brick moves along an x axis. Its acceleration as a function of its position is shown in Fig. 7-40.The scale of the figure's vertical axis is set by as = 20.0 m/s2. What is the net work performed on the brick by the force causing the acceleration as the brick moves from x = 0 to x =8.0m?

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4 6. * (m) (8/u)