A 050-Kg Block Attached to an Ideal Spring with a Spring

question 12

Multiple Choice

A 0.50-kg block attached to an ideal spring with a spring constant of 80 N/m oscillates on a horizontal frictionless surface.When the spring is 4.0 cm longer than its equilibrium length, the speed of the block is 0.50 m/s.The greatest speed of the block is:

• A)0.32 m/s
• B)0.55 m/s
• C)0.71 m/s
• D)0.87 m/s
• E)0.93 m/s

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