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Homework Help: Mechanical Waves and tension

  1. Apr 24, 2012 #1
    1. The problem statement, all variables and given/known data

    A string whose linear density is 0.00500 kg/m is stretched to produce a wave speed of 85 m/s. What tension was applied to the string.

    2. Relevant equations


    3. The attempt at a solution

    v=0.00500 kg/m m/L= 85 m/s

    I can't seem to re-arrange the equation properly or I am just using the wrong one to begin with.
  2. jcsd
  3. Apr 24, 2012 #2


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    Homework Helper
    Gold Member

    Before plugging in any numbers, use algebra to solve the v=√(F/(m/L)) formula for the tension F. [And it might help to treat the linear density (m/L) as its own variable. I'd call it μ, or maybe λ.]
    Last edited: Apr 24, 2012
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