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Coefficient, uk=0.6

A 7.5-kg block slides along a horizontal rough
surface (0.6). It's speed was 8 m/s just before it was
brought to rest by compressing a very long spring
of spring constant 11.7x10 N/m The maximum
spring compression (in cm) is: a. 36.3 b. 32.3 O c.
60.3 d. 44.3 e. 52.3

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