Question

Find the velocity of a transverse wave in a string which is 4.0 m long with a

total mass of 20 g when under a tension of 100N.

Answer 1

We can find the velocity of a transverse wave in a string from the formula:

$$v=\sqrt{\dfrac{T}{\mu}}=\sqrt{\dfrac{TL}{m}},$$ $$v=\sqrt{\dfrac{100\ N\times4\ m}{0.02\ kg}}=141.4\ \dfrac{m}{s}.$$