A Spring with a Spring Constant K = 1600 N/m

question 58

Multiple Choice

A spring with a spring constant k = 1600 N/m is at rest on the bottom of an inclined plane.A 7.0-kg block slides down the plane and makes contact with the spring at point A as shown.After contact, the spring is compressed to point B, 0.20 m from point A, where the speed of the block is zero m/s.What was the speed of the block just before contact with the spring?

• A)3.2 m/s
• B)12 m/s
• C)2.4 m/s
• D)9.1 m/s
• E)4.2 m/s

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