Answer to Question #130207 in Differential Equations for Paschal

Question

A string is stretched and fastened to two points at a distance 0
l
0 apart. Motion is started by
displacing the string in the form y = k sin πx
l
from which it is released at time t = 0. Show
that the displacement of any point on the string at a distance x from one end at time t is
given by k sin πx
l
cos πax
l

Answer 1

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