77 When a 2 kg mass is attached to a spring whose constant is 72 N/m, it comes to rest in the equilibrium position. Starting at t=0, a force equal to f(t) = 6e6t cos 4t is applied to the system. In the absence of doinping, a) find the position of the t = π· round your answer places. b) what is Q after auswer mass when to 4 decimal the amplitude of vibrations very long time? round your 4 decimal places. to

Advanced Engineering Mathematics
10th Edition
ISBN:9780470458365
Author:Erwin Kreyszig
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Chapter2: Second-order Linear Odes
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77
When a 2 kg mass is attached to a spring whose
constant is 72 N/m, it comes to rest in the equilibrium
position. Starting at t=0, a force equal to
f (t) = 6e²°t cos 4t is
"cas it is applied to the system. In
absence
of doinping,
the
a) find the
position of the
t = π· round your answer to
places.
b) what is
Q
after
auswer
mass
when
4 decimal
the amplitude of vibrations
very long time? round
4 decimat
бесшал
to
your
places.
Transcribed Image Text:77 When a 2 kg mass is attached to a spring whose constant is 72 N/m, it comes to rest in the equilibrium position. Starting at t=0, a force equal to f (t) = 6e²°t cos 4t is "cas it is applied to the system. In absence of doinping, the a) find the position of the t = π· round your answer to places. b) what is Q after auswer mass when 4 decimal the amplitude of vibrations very long time? round 4 decimat бесшал to your places.
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