Physics - Wave on String Question with Solution | TestHub

A string of length $L$ is fixed at one end and under tension due to a mass $M=25$ kg hanging from the other end, as shown in the sketch. Coordinate axes are chosen so that the string runs from $x=-\frac{L}{2}$ to $x=\frac{L}{2}$, and $y$ is the transverse displacement. The string is vibrating at one of its resonant frequencies with displacement $y(x,t)=0.05\cos (12.0x)\sin (360t)$.