1. The problem statement, all variables and given/known data One end of a long horizontal string is attached to a wall, and the other end is passed over a pulley and attached to a mass M. The total mass of the string is M/100. A Gaussian wave pulse takes 0.12 s to travel from one end of the string to the other. Write down the equation for the displacement of the string as a function of position and time. 2. Relevant equations Y = Aexp(-(x-vt)^2/a) - equation of Gaussian waveform 3. The attempt at a solution Hi I am actually totally lost on how to find the parameters A and a. Find v is pretty easy using the tension and mass/length and speed. I have no clue where to start on finding A and a. Thanks!