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The velocity of transverse waves on a string

  • Thread starter Nikles
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  • #1
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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.



Homework Equations


v=[itex]\sqrt{}F/ρ[/itex]



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.
 

Answers and Replies

  • #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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