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physics..... please....urgent....

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A 1.0 kg mass is attached to the end of a vertical ideal spring with a force constant of 400 N/m. The mass is set in simple harmonic motion with an amplitude of 10 cm. What is the speed of the 1.0 kg mass at the equilibrium position?

  • physics..... please....urgent.... - ,

    Maximum kinetic energy (which occurs at the equilbrium position) equals maximum stored spring potential energy.

    Therefore

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

    Vmax = X*sqrt(k/M)

    X is the amplitude, 0.100 m.

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