An object of mass m is traveling on a horizontal surface. There is a coefficient ofkinetic friction µ between the object and the surface. The object has speed v when itreaches x=0 and encounters a spring. The object compresses the spring, stops, and thenrecoils and travels in the opposite direction. When the object reaches x=0 on its returntrip, it stops. Find k, the spring constant, in terms of µ, m, g, and v

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