A 10 kg brick moves along an -axis. Its acceleration as a function of its position is shown in figure. What is the net work performed on the brick by the force causing the acceleration as the brick moves from to m?

A 10 kg brick moves along an -axis. Its acceleration as a function of its position is shown in figure. What is the net work performed on the brick by the force causing the acceleration as the brick moves from to m?

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According to the graph the acceleration varies linearly with the coordinate . We may write , where is the slope of the graph. From the graph The force on the brick is in the positive -direction and according to Newton’s second law, its magnitude is given by If is the final coordinate, the work done by the force is |