A block with mass 0.50 kg is forced against a horizontal spring of negligible mass, compressing the spring a distance of 0.20 m (figure). When released, the block moves on a horizontal table top for 1.00 m before coming to rest. The spring constant k is 100 N/m What, is the coefficient of kinetic friction, μk, between the block and the table?

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Audrina Donaldson · Accepted Answer

⇒      W          n      e      t        =  0        W          s      p      r      i      n      g        +      W          f      r      i      c      t      i      o      n        =  0        1    2    k      x    2    =            μ        k    m  g  l              μ        k    =            (              1        2            )      k              x        2                    m      g      l                    μ        k    =  0.40

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