1D wave equation. String length: L=1m, pinned at its ends: x=0 and x=L Tension in string, T=10N Linear density of material: 0 = 0.5kg/m Denote the displacement of the points of the bar u(x,t) Find the solution to the problem of 10 wave propagation under the initial conditions shown below. Please show all steps, with clear writing, and also clearly (and separately) state the coefficients of the final expression for the displacement. Our, 0) u(x, 0) = 0.1x (L - I), = 0 at