Physics
posted by Sean .
A wave described by y(x,t)=Asin(kxwt) 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?

y(x,t)=Asin(kxwt)
Speed
dy/dt =  Aωcos(kxωt),
Max. speed
(dy/dt)max =Aω.
cos(kxωt) =1 =>
sin(kxwt)=0 => x=0