Question

A string of a music instrument has a length of 0.64 m. Its mass is 8.6 g. Find the speed of a wave on this string in m/s if the tension on the string is 75.6 N? (Hint: You need to calculate the linear mass density – mass/length in m/kg).

Answer 1

$v=\sqrt{T/\rho_l}=\sqrt{75.6/(0.0086/0.64)}=75\ (m/s)$ . Answer