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


a

Physics & Space Science

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