Answer to Question #69409 in Physics for Sushen Nayak

Question

A transverse wave of amplitude 2 cm is generated at x = 0 and t=0 in a long string
by a tuning fork of frequency 500 Hz. At a
particular time, the displacement of the
particles at x= 20 cm and x = 40 cm are
-1.0 cm and 1.0 cm respectively Calculate
the wavelength and velocity of the wave.
express the displacement in terms of wave
velocity, if the wave travels along the positive
x direction and x = 0 signifies the equilibrium position.