A Mass of 0

question 42

Multiple Choice

A mass of 0.4 kg,hanging from a spring with a spring constant of 87 N/m,is set into an up-and-down simple harmonic motion.What is the speed of the mass when moving through a point at 0.05 m displacement? The starting displacement of the mass is 0.1 m from its equilibrium position.

• A) zero
• B) 0.6 m/s
• C) 0.7 m/s
• D) 1.3 m/s
• E) ​1.8 m/s

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