1. The problem statement, all variables and given/known data A transverse wave is described by y=0.02 sin(30x-400t). Determine the first positive x-coordinate (x>0) for which the transverse velocity of that point in the medium is at its maximum positive value when t=0. All variables are in SI units. a) 5.2 cm b) 10.4cm c) 15.7 cm d.20.9 e) none of the above. 2. Relevant equations 3. The attempt at a solution I found the derivative of the position equation to get the equation of velocity, at t=0 which is v = 0.6 cos(30x). I equated it to max velocity which is 0.6, therefore getting 1=cos(30x). arcos(1) is 2pi, which I later divided by 30 to get 0.209. Where did I make a mistake?