Question $3(1$ point$)$

A string is strung horizontally with a fixed tension. A wave of frequency $100$ Hz is sent along the string, and it has a wave speed of $50\mathrm{.}0\frac{m}{s}.$ Then a second wave, one of frequency $200$ Hz $,$ is sent along the string. What is the wave speed of the second wave?

$25\mathrm{.}0\frac{m}{s}$

$50\mathrm{.}0\frac{m}{s}$

$70\mathrm{.}7\frac{m}{s}$

$100\frac{m}{s}$

$124\frac{m}{s}$