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Homework Help: Calculating Tension in a Rope

  1. Apr 20, 2009 #1
    1. The problem statement, all variables and given/known data
    With what tension must a rope with length 5m, and mass 0.120 kg, be stretched for transverse waves of frequency 50.0 Hz to have a wavelength of 0.750 m?

    2. Relevant equations
    K = ((2*Pi)/wavelength)

    3. The attempt at a solution
    K = (2*Pi)/.75
    K = 8.38 1/m

    I'm not sure where to go from here.
  2. jcsd
  3. Apr 20, 2009 #2


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    Homework Helper
    Gold Member

    Use the following relationship: v = √(T/μ).

    v is the speed of the waves, T is the tension, and μ is the mass per unit length.
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