The equation of a wave travelling on a string is \[ y=(0 \cdot 10 \...

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The equation of a wave travelling on a string is
\[
y=(0 \cdot 10 \mathrm{~mm}) \sin \left[\left(31 \cdot 4 \mathrm{~m}^{-1}\right) x+\left(314 \mathrm{~s}^{-1}\right) t\right] .
\]
\( \mathrm{P} \)
(a) In which direction does the wave travel? (b) Find
W 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 ?
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