# Longitudinal Wave properties

1. Nov 25, 2008

### rpcarroll

This one has me pretty well stumped, I've tried several methods and I am basically getting tunnel vision now. Any help would be appreciated.

1. The problem statement, all variables and given/known data
(a) Show that the speed of a longitudinal wave along a spring of force constant 'k' is v=$$\sqrt{kL/\mu}$$, where L is the unstretched length of the spring and $$\mu$$ is the mass per unit length.

(b) A spring with mass .4kg has an unstretched length of 2m and a froce constant of 100 N/m. Use results of (a) to solve.
1. The problem statement, all variables and given/known data

2. Relevant equations

3. The attempt at a solution