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A mass-spring system of mass m 1 kg and spring constant k = 100 N/m is set
into vibration with an amplitude A = 20 cm. If the acceleration at a given position
x is a = - 8 m/s^2, then the velocity at the same position is:
O v = 10.6 m/s
O v= +2 m/s
O v= ±2.89 m/s
O v= =1.83 m/s
O v= ±3 m/s
O v= ±1 m/s

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