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**[SOLVED] transverse sinusoidal wave on a string**

## Homework Statement

The wavefunction of a transverse sinusoidal wave on a string has the form y(x,t) = A*cos(kx +omega*t + phi), where x and y are in m, t is in s and phi is the phase constant in radians. The wave has a period T = 24.2 ms and travels in the negative x direction with a speed of 28.3 m/s. At t = 0, a particle on the string at x = 0 has a displacement of 1.80 cm and travels downward with a speed of 2.05 m/s. What is the amplitude of the wave?

## Homework Equations

y(x,t) = Acos(kx + wt + phi)

y(x,t) = A/(((x - vt)^2) + 1)

## The Attempt at a Solution

Despite my attempts using these equations, i have made ZERO headway. I think I am having a problem understanding where all the information in the question fits. I did a quick diagram to show what i THINK is happening (is probably not to scale). I guess i have to be PMed for anyone to see it?