The wave function for a standing wave on a string of linear mass density u = 0.2 kg/m, is given by y(x,t) = 0.05 sin(4Ttx)cos(60rt), where x and y are in meters and t is in seconds. At what time would an element of the string, located at X = 0.1 m, has its transverse velocity v_y = %3D v_(y,max)/2? t = Tt/60 sec t = 1/360 sec t = Tt/360 sec t = 1/60 sec