When a sinusoidal wave moves along a string, the rate of transport of kinetic energy along the string is given by the equation

$\frac{dK}{dt}=\frac{1}{2}v{}^2{A}^{2}co{s}^2(kx-t)$

$4\mathrm{.}76{10}^{-3}k\frac{g}{m}.$

$($a$).$Determine.the speed of the wave on the string.

$\frac{m}{s}$

Enter a number.

$($b$)$ Determine the amplitude of the wave on the string.

$2\mathrm{.}00$ m