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Homework Help: Forced Mass on Spring please help

  1. Nov 29, 2006 #1
    1. The problem statement, all variables and given/known data

    A mass of 2kg is hung on a spring of spring constant 3.92 x 103 Nm-1. The natural frequency for the system is wo = 44.3 s-1. The system is forced to vibrate by an alternating force of amplitude
    F = 2 cos (wt) Newtons.
    What is the amplitude of vibration when w = 20 s-1



    2. Relevant equations



    3. The attempt at a solution
     
  2. jcsd
  3. Nov 29, 2006 #2

    radou

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    You should find this link useful in order to gather up some relevant equations and show an attempt to solve the problem: http://ltcconline.net/greenl/courses/204/appsHigherOrder/forcedVibrations.htm" [Broken]
     
    Last edited by a moderator: May 2, 2017
  4. Nov 29, 2006 #3
    thankyou very much, i have been searching for ages to find a page as useful as that
     
  5. Nov 29, 2006 #4

    OlderDan

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