The force stretching the D string on a certain guitar is 168 N. The string's linear mass density is 0.007 kg/m. What is the speed of waves on the string?

Answer 1

The speed of a pulse or wave on a string under tension can be found with the equation

|v|=√Ftμ

where ${\mathrm{Ft}}^{}$ is the tension in the string and $\mu$ is the linear mass density of the string. Substitute your values and solve the equation.

Hope it makes sense. Let me know if you have any questions.