1. The problem statement, all variables and given/known data A triangular wave pulse on a taut string travels in the positive x-direction with speed v. The tension in the string is F, and the linear mass density of the string is u. At t = 0, the shape of the pulse is given by: y(x,0) = 0 if x < -L h(L + x)/L for -L < x < 0 h(L - x)/L for 0 < x < L 0 for x > L 3. The attempt at a solution I don't really know where to start, I'm having problems interpreting the question; what does L represent? What is the h function?