In: Physics
Consider an elastic string of length L whose ends are held fixed. The string is set in motion with no initial velocity from an initial position
u(x, 0) = f(x).
Let
L = 10
and
a = 1
in parts (b) and (c). (A computer algebra system is recommended.)
f(x) =
  | 
0 | ≤ | x | ≤
  | 
||||||
| 4, | 
  | 
< | x | < | 
  | 
|||||
  | 
  | 
≤ x | ≤ L | |||||||
(a) Find the displacement
u(x, t)
for the given initial position
f(x).
(Use a to represent an arbitrary constant.)
u(x, t) =
| ∞ | |
| n = 1 |