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A spring oriented vertically is attached to a hard horizontal surface as in the figure below. The spring has a force constant of 1.64 kN/m. How much is the spring compressed when a object of mass m = 2.35 kg is placed on top of the spring and the system is at rest?

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2 answers

  1. mg=kx
    x=mg/k=2.35•9.8/1.64•10³=0.014 m

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  2. F=-kx
    F=mg
    mg=-kx
    x=mg/-k
    =2.30kg×9.80bm/s^2/1460N/m
    =0.0154m

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