The Horizontal Surface on Which the Block Slides Is Frictionless

question 7

Multiple Choice

The horizontal surface on which the block slides is frictionless.The speed of the block before it touches the spring is 6.0 m/s.How fast is the block moving at the instant the spring has been compressed 15 cm? k = 2.0 kN/m

• A)3.7 m/s
• B)4.4 m/s
• C)4.9 m/s
• D)5.4 m/s
• E)14 m/s

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