Question:
The equation of a wave travelling on a string is
$\mathrm{y}=(0.10 \mathrm{~mm}) \sin \left[\left(31.4 \mathrm{~m}^{-1}\right) \mathrm{x}+\left(314 \mathrm{~s}^{-1}\right) \mathrm{t}\right]$
(a) In which direction does the wave travel
(b) Find the wave speed the wavelength and the frequency of the wave.
(c) What is the maximum displacement and the maximum speed of a portion of the string?
Solution:
