A transverse sinusoidal wave on a string has a period T = 15.0 ms and travels in the negative x direction with a speed of 30.0 m/s. Att = 0, a particle on the string at x = 0 has a transverse position of 2.00 cm and is traveling downward with a speed of 4.00 m/s.
Describe is the amplitude of the wave?