The mass m and Hooke's constant k for a mass-and-spring system are given below. Determine whether or not pure resonance will occur under the influence of the given external periodic force F(t). m = 1, k = 25; F(t) is the odd function of period 2x with F(t) = 8 for 0

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Author:Erwin Kreyszig
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Chapter2: Second-order Linear Odes
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The mass m and Hooke's constant k for a mass-and-spring system are given below. Determine whether or not pure resonance will occur under the influence of the given external periodic force F(t).
m = 1, k = 25; F(t) is the odd function of period 2x with F(t) = 8 for 0 <t<
Choose the correct answer below.
○ A.
○ B.
ос.
D.
The Fourier series F(t)=
The Fourier series F(t)=
32
--
Π
Σ
n odd
32
==
Σ
Π
n odd
32
Σ
Π
n odd
12
sin nt
n
sin nt
n
does not contain a term of sin 5t, thus resonance does not occur.
contains a term of sin 5t, thus resonance does occur.
sin nt
n
does not contain a term of sin 5t, thus resonance does occur.
The Fourier series F(t)=-
The Fourier series F(t) =
Σ
n even
sin nt
n
contains a term of sin 5t, thus resonance does not occur.
Transcribed Image Text:The mass m and Hooke's constant k for a mass-and-spring system are given below. Determine whether or not pure resonance will occur under the influence of the given external periodic force F(t). m = 1, k = 25; F(t) is the odd function of period 2x with F(t) = 8 for 0 <t< Choose the correct answer below. ○ A. ○ B. ос. D. The Fourier series F(t)= The Fourier series F(t)= 32 -- Π Σ n odd 32 == Σ Π n odd 32 Σ Π n odd 12 sin nt n sin nt n does not contain a term of sin 5t, thus resonance does not occur. contains a term of sin 5t, thus resonance does occur. sin nt n does not contain a term of sin 5t, thus resonance does occur. The Fourier series F(t)=- The Fourier series F(t) = Σ n even sin nt n contains a term of sin 5t, thus resonance does not occur.
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