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Homework Help: Pulse Transverse wave Tension

  1. Dec 2, 2015 #1
    1. The problem statement, all variables and given/known data
    A transverse pulse is propagating on a 2.0 m long string of mass 50 g. The pulse is
    described by the equation:


    , with x and y in meters, and t in seconds.
    Find the tension in the string.

    2. Relevant equations

    3. The attempt at a solution
    I first tried finding the amplitude of the wave, and at then I would have the displacement. After the displacement i dont know what to do. How doees this even relate to tension?
  2. jcsd
  3. Dec 3, 2015 #2


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    You are going about this the wrong way, the amplitude is completely irrelevant and your "relevant" equation is not either because it describes a sine wave and your wave is not a sine wave.

    Ask yourself the following:
    What is the speed of the wave?
    How does the speed of the wave relate to the tension?
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