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A pulse travels on a string under tension. The transverse displacement of the string from its equilibrium position is given by \( y=f(x-150 t) \) where \( \mathrm{x} \) is in meters and \( \mathrm{t} \) is in seconds.
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(a) The pulse ( \( y \) ) is plotted as a function of \( x \) for \( t=0 \). Draw the pulse (in the panels given)
(i) as a function of \( \mathrm{x} \) for \( \mathrm{t}=0.04 \mathrm{~s} \)
(ii) as a function of \( \mathrm{t} \) for \( \mathrm{x}=0 \).
(b) Find the velocity of a particle at \( t=0, x=1 \mathrm{~m} \).
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