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Homework Help: Amplitude and mechanical energy

  1. Sep 17, 2008 #1
    what happens to the amplitude if total mechanical energy doubles????

    i thought, if there was enough mechanical energy in the spring, the amplitude would be at its maximum... like it would have stretched as far as it could, so doubling the total mechanical energy, would only make the periods shorter, and the amplitude stays the same.

    if this is right or wrong, can any one please let me know!??!?

  2. jcsd
  3. Sep 17, 2008 #2


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    Hi KC! :smile:

    Hint: mechanical energy = KE + spring energy.

    So when is the KE = 0?

    and how does the spring energy relate to the length? :smile:
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