Consider the following initial value problem, in which an input of large amplitude and short duration has been idealized as a delta function: a" + 47'x = 2n8(t – 1), x(0) = 0, z'(0) = 0. In the following parts, use h(t- c) for the Heaviside function h.(t) if necessary. a. Find the Laplace transform of the solution. L{r(t)}(s) = b. Obtain the solution r(t). r(t) = c. Express the solution as a piecewise-defined function and think about what happens to the graph of the solution at t = 1. if 0

Advanced Engineering Mathematics
10th Edition
ISBN:9780470458365
Author:Erwin Kreyszig
Publisher:Erwin Kreyszig
Chapter2: Second-order Linear Odes
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3.

**Initial Value Problem with Delta Function Application**

Consider the following initial value problem, in which an input of large amplitude and short duration has been idealized as a delta function:

\[ x'' + 4\pi^2 x = 2\pi \delta(t - 1), \quad x(0) = 0, \quad x'(0) = 0. \]

In the following parts, use \( h(t - c) \) for the Heaviside function \( h_c(t) \) if necessary.

**a. Find the Laplace transform of the solution.**

\[
\mathcal{L}\{x(t)\}(s) = \boxed{\phantom{\text{Solution here}}}
\]

**b. Obtain the solution \( x(t) \).**

\[
x(t) = \boxed{\phantom{\text{Solution here}}}
\]

**c. Express the solution as a piecewise-defined function and think about what happens to the graph of the solution at \( t = 1 \).**

\[
x(t) = 
\begin{cases} 
\boxed{\phantom{\text{Solution here}}} & \text{if } 0 \leq t < 1, \\
\boxed{\phantom{\text{Solution here}}} & \text{if } 1 \leq t < \infty.
\end{cases}
\]
Transcribed Image Text:**Initial Value Problem with Delta Function Application** Consider the following initial value problem, in which an input of large amplitude and short duration has been idealized as a delta function: \[ x'' + 4\pi^2 x = 2\pi \delta(t - 1), \quad x(0) = 0, \quad x'(0) = 0. \] In the following parts, use \( h(t - c) \) for the Heaviside function \( h_c(t) \) if necessary. **a. Find the Laplace transform of the solution.** \[ \mathcal{L}\{x(t)\}(s) = \boxed{\phantom{\text{Solution here}}} \] **b. Obtain the solution \( x(t) \).** \[ x(t) = \boxed{\phantom{\text{Solution here}}} \] **c. Express the solution as a piecewise-defined function and think about what happens to the graph of the solution at \( t = 1 \).** \[ x(t) = \begin{cases} \boxed{\phantom{\text{Solution here}}} & \text{if } 0 \leq t < 1, \\ \boxed{\phantom{\text{Solution here}}} & \text{if } 1 \leq t < \infty. \end{cases} \]
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