Question

. A transverse harmonic wave on a string is described by
Y= 3sin ( 36t + 0.018x + π/4 )

Is this a travelling wave or a stationary wave?

If it is travelling what are the speed and direction of its propagation?

What are its amplitude and frequency?

What is the initial phase at the origin?

Answer 1

travelling wave 
direction - x axis, 
speed = 118cos(36t + 0.018x + π/4)
amplitude = 3
frequency = 5.73
initial phase is π/4

Answer 2

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Refer the attachment:-