An 8.0 kg object is moving in the positive direction of an K() x axis. When it passes through x-0m, a constant force directed along the axis begins to act on it. The figure gives its kinetic energy (K) versus position (x) as it moves from x-0 to x-5 m; Ko=30 J. The force continues to act. What is the velocity ("v") when the object moves back through x = -3m ? x (m) 0.

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