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Homework Help: Damped oscillations - Finding damping coefficient

  1. Apr 29, 2009 #1
    1. The problem statement, all variables and given/known data
    A 50.0g hard-boiled egg moves on the end of a spring with force constant k = 25.0 N/m. It is released with an amplitude 0.300m. A damping force Fx = -bv acts on the egg. After it oscillates for 5.00s, the amplitude of the motion has decreased to 0.100m.
    Calculate the magnitude of the damping coefficient b.

    2. Relevant equations

    3. The attempt at a solution
    I honestly have no idea how to approach this question. Could someone steer me in the right direction?
  2. jcsd
  3. Apr 29, 2009 #2
  4. Apr 30, 2009 #3


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    Staff Emeritus
    Science Advisor
    Homework Helper

    Note that the amplitude, at time t, is given by

    Amplitude = A e-bt/2m
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