The amplitude of a wave disturbance propagating in the positive x-direction is given by at time in and by v=(1)/(1+x^(2)) at time t=0 and by y=(1)/([1+(x-1)^(2)]) at t=2 seconds, where x and y are in metres. The shape of the wave disturbance does not change during the propagation. What is the velocity of the wave?

The amplitude of a wave disturbance propagating in the positive x-dire

1.	The amplitude of a wave disturbance propagating in the positive x-direction is given by at time in and by v=(1)/(1+x^(2)) at time t=0 and by y=(1)/([1+(x-1)^(2)]) at t=2 seconds, where x and y are in metres. The shape of the wave disturbance does not change during the propagation. What is the velocity of the wave?
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