A Mass of 0

question 48

Multiple Choice

A mass of 0.39 kg,hanging from a spring with a spring constant of 72 N/m,is set into an up-and-down simple harmonic motion.What is the speed of the mass when moving through the equilibrium point? The starting displacement from equilibrium is 0.14 m.
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• A) zero
• B) 1.9 m/s
• C) 2.7 m/s
• D) 2.5 m/s
• E) 0.3 m/s

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