The function y(x, t) = A cos(kx - ωt), describes a wave traveling to the right on a tight string with the x-axis parallel to the string. The transverse velocity of the string is u(x, t) = dy/dt. If the wave is traveling to the right at speed v, what is the maximum transverse speed of a particle in the string?
• kA
• vω/k
• ω/k
• kvA
• None of these
• v