Figure shows the transverse velocity u versus time t of the point on a string at x = 0, as a wave passes through it. The scale on the vertical axis is set by us = 4.0m/s. The wave has form y(x, t) = ym sin (kx ?? wt + ?). What is ?? (Caution: A calculator does not always give the proper inverse trig function, so check your answer by substituting it and an assumed value of w into y(x, t) and then plotting the function.)

Transcribed Image Text:

u (m/s)