A wave on a stretched cord is described by (SI units)

PHYSICS · Single correct · A Level · Physics · Waves · Waves

Problem

A wave on a stretched cord is described by

y(x,t)=3\sin(0.5x+200t)

(SI units). Determine the magnitude of the speed at which the wave propagates along the cord. (a)

200\,\text{m s}^{-1}

(b)

100\,\text{m s}^{-1}

(c)

400\,\text{m s}^{-1}

(d)

64\,\text{m s}^{-1}