A 020 Kg Object,attached to a Spring with Spring Constant K

question 10

Multiple Choice

A 0.20 kg object,attached to a spring with spring constant k = 10 N/m,is moving on a horizontal frictionless surface in simple harmonic motion of amplitude of 0.080 m.What is its speed at the instant when its displacement is 0.040 m? (Hint: Use conservation of energy. )

• A)9.8 m/s
• B)4.9 m/s
• C)49 cm/s
• D)24.5 cm/s

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