# The velocity of transverse waves on a string

1. Sep 17, 2013

### Nikles

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=$\sqrt{}F/ρ$

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. Sep 17, 2013

### PhysicsandSuch

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?

$$f = \frac{v}{2 L}$$