Consider a 2.12 kg block that is dragged by a spring on a (relatively) frictionless horizontal surface at constant velocity. Suppose the block reaches a rough patch and the spring stretches by 3.25 cm. Compute the coefficient of kinetic friction ?μ between the block and the rough patch if the spring has a force constant of 172.0 N/m.

Consider a 2.12 kg block that is dragged by a spring on a (relatively) frictionless horizontal surface at constant velocity. Suppose the block reaches a rough patch and the spring stretches by 3.25 cm. Compute the coefficient of kinetic friction ?μ between the block and the rough patch if the spring has a force constant of 172.0 N/m.

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