sinusoidal wave on a string

Question

A sinusoidal wave on a string is described by the equation: y = (0.15m) sin(10 pi t – 3 pi x + π/4), where x is in meters and t in seconds. If the mass per unit length of this string is 12.0 g/m, determine (a) the speed of the wave, (b) the wavelength, (c) the frequency, and (d) the power transmitted to the wave.

Answer 1

Comparing with Equation of progressive wave

y= A Sin ( wt-kx +∅)

w= 10pi

2pif = w f = frequency

f = 5hz

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