# The velocity of transverse waves on a string

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=$\sqrt{}F/ρ$

## 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.

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?

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