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A 1.80 kg block slides on a frictionless horizontal surface. The block hits a spring with a speed of 2.00 m/s and compresses it a distance of 11.0 cm before coming to rest. What is the force constant of the spring?

  • Physics -

    When compressed the maximum amount , the potential eneegy stored in the spring equals the initial kinetic energy. Thus

    (1/2) k X^2 = (1/2) M Vo^2

    k = M(Vo/X)^2

    Vo = 0.11 m

    Solve for k

    k will have units of N/m

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