 #1
 304
 14
Main Question or Discussion Point
 I don't know why ∂Ψ/∂x should be zero in (1.125). Shouldn't the tension be zero at the very last end?
 I don't know why we can apply the results of the wave equation at the free end because we assumed there are tension both sides of the string segment during the derivation of the wave equation.
Attachments

17.9 KB Views: 454