A travelling harmonic wave on a string is described by .
(a) what are the displacement and velocity of oscillation of a point at x = 1 cm, and t = 1 sec? Is this velocity equal to the velocity of wave propagation?
(b) Locate the points of the string which have the same transverse displacements and velocity as that of point at x = 1 cm and t = 2 s, 5 s and 11 s.
The given harmonic wave is: