The wave function for a travelling wave on a taut rope is given by: $y(x,t)=$

$10$ points

$0\mathrm{.}01sin(3x-120t),$ where $x$ and $y$ are in meters and $t$ is in seconds. The linear mass density of the string is $=0\mathrm{.}2k\frac{g}{m}.$ The Power transmitted by this wave is:

$P=11\mathrm{.}25W$

$P=14\mathrm{.}08W$

$P=5\mathrm{.}76W$

$P=8\mathrm{.}54W$