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Homework Help: The velocity of transverse waves on a string

  1. Sep 17, 2013 #1
    1. A violin string is 35 cm long between its fixed ends and has a mass of 2.0g. The string sounds the note A4 (440 Hz) when played.



    2. Relevant equations
    v=[itex]\sqrt{}F/ρ[/itex]



    3. The attempt at a solution
    I calculated ρ, mass per unit length, to be .0057 kg/m but do not know how to find the force that I need to plug into the equation.
     
  2. jcsd
  3. Sep 17, 2013 #2
    Another formula (related to the one you mentioned, but derived from the wavelength) gives the wave velocity directly in terms of the freqency and string length. Try this one?

    $$ f = \frac{v}{2 L} $$
     
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