Question

a transverse wave on a string is described by y(x,t)=3 sin (36t+0.018x+ pi/4) where x,y are in cm and t in secs
​1)is this a travelling wave or stationary wave? if it is travelling, what are the speed and direction of its propagation?
2)what is the least distance between the successive crests in the wave?
3)what is the initial phase at the origin ?
4)what is its frequency?

Answer 1

$\huge\boxed{Answer:-}$

Refer the attachment:-