4. 1 3 4 5 6. Time (s) The position vs time graph shown above represents the horizontal motion of a mass on a spring. At which of the given times is the mass on the spring moving at maximum acceleration to the right (positive acceleration)? A. OS B. the acceleration is zero because the velocity is constant C. 4.5 s D. 1.5 s E. 35 Position (m)

4. 1 3 4 5 6. Time (s) The position vs time graph shown above represents the horizontal motion of a mass on a spring. At which of the given times is the mass on the spring moving at maximum acceleration to the right (positive acceleration)? A. OS B. the acceleration is zero because the velocity is constant C. 4.5 s D. 1.5 s E. 35 Position (m)

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