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Simple Harmonics - frequency

  1. Dec 12, 2006 #1
    1. The problem statement, all variables and given/known data

    A 8.3 kg mass slides on a frictionless surface
    and is attached to two springs with spring
    constants 28 N/m and 62 N/m that are on either side of the mass.


    Find the frequency of oscillation. Answer
    in units of Hz.

    2. Relevant equations

    (2pi sqrt(m/k))^-1

    3. The attempt at a solution
    subtract the constants from each other to find the coonstant of the system. use this in the equation above. I got about .322Hz is this right?
     
  2. jcsd
  3. Dec 12, 2006 #2

    OlderDan

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    Science Advisor
    Homework Helper

    You need to rethink the combined effect of the two springs. At equilibrium, each spring is pulling the mass with the same amount of force. What happens to each of those forces when the mass is moved to one side?
     
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