Question

Calculate the frequency of a sound wave produced when a tennis racquet string is plucked. The tension of the string is 274 N, the mass of the string is 28 kg and the length of the string is 0.74 m.

Answer 1

Answer:

Explanation:

The velocity of sound from the plucked string in the tennis racquet is:

$v=\sqrt{\frac{FL}{m}}=\sqrt{\frac{274(0.74)}{28}}\approx 2.69 ms^{-1}$

Then the frequency will be:

$f=\frac{v}{2L}=\frac{2.69}{2(0.74)}\approx 1.81 Hz$