# Physics

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A wave described by y(x,t)=Asin(kx-wt) moves down a string. What is the maximum transverse speed an atom of the string can have? What is the displacement of this atom at this time?

• Physics -

y(x,t)=Asin(kx-wt)

Speed
dy/dt = - Aωcos(kx-ωt),
Max. speed
(dy/dt)max =Aω.

cos(kx-ωt) =1 =>
sin(kx-wt)=0 => x=0

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