Physics

Problem

A transverse wave travelling on a stretched string is represented by

y(x,t)=0.04\cos(4\pi x-200\pi t+\tfrac{\pi}{3})

, \text{where }

x

and

y

are in metres and

t

in seconds. Answer the following questions. a. Part 1: (i) Identify the numerical values (with proper units) of amplitude, angular wave number, angular frequency and initial phase constant. b. Part 2: (ii) Calculate the wavelength, time–period, frequency and speed of the wave. c. Part 3: (iii) State clearly whether the wave propagates along the +x–direction or the −x–direction and give a brief reason for your answer.

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