At a particular point on a stretched string the displacement varies with time according to y=4.0sin(180πt)mm, where t is in seconds.
(a) Determine the amplitude, angular frequency, time period and frequency of the oscillation at that point.
(b) The wavelength of the corresponding wave along the string is 80cm. Calculate the speed with which the disturbance travels along the string.
(c) How far does the wave disturbance travel in a time interval equal to five complete oscillations of the particle at the given point?