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| A car of variable mass (20 g < m < 200 g) is attached to the end of an air track by a horizontal spring of variable force constant (1 N/m < k < 100 N/m). The car rests on the (frictionless) air track. The distance grid is in centimeters and the times are shown in seconds. A sonic ranger follows the motion of the car. Study the motion and the graph of the car's displacement from equilibrium as a function of time. How does the period of oscillation depend on m and k? |