Q- An object of mass m is traveling on a horizontal surface. There is a coefficient of kinetic friction m between the object and the surface. The object has speed v when it reaches x = 0 and encounters a spring. The object compresses the spring, stops, and then recoils and travels in the opposite direction. When the object reaches x = 0 on its return trip, it stops. Find k, the spring constant in terms of given quantities.
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