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A box of mass m = 3 kg is pushed against a vertical wall, with a...

A box of mass m = 3 kg is pushed against a vertical wall, with a force that gets weaker over time, Fa = 10 - t N. After 10 seconds, Fa remains 0 Newtons (the force does not become negative). The coefficient of static friction ?s = 0.7 and ?k = 0.4

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