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Finding resonance frequency of a hanging mass on a spring

  1. Apr 17, 2013 #1
    Why did they calculate angular frequency if the question asked for frequency?

    Also why is kx=mg? Wouldn't that mean the spring is at equilibrium?
     

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  2. jcsd
  3. Apr 17, 2013 #2
    You can express frequency as rad/sec or rev/sec.

    Also why is kx=mg? Wouldn't that mean the spring is at equilibrium?
    In this case the spring is at equilibrium but this relationship allows you to get an expression for k/m and this is needed to get the frequency.
     
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