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Pls help ASAP

Transcribed Image Text:= When a 4 kg mass is attached to a spring whose constant is 100 N/m, it comes to rest in the equilibrium position.
Starting at t=0, a force equal to f(t) = 24e-4t cos 5t is applied to the system. In the absence of damping,
(a) find the position of the mass when t = 7.
(b) what is the amplitude of vibrations after a very long time?
0:-0.0008
0
Round your answer to 4 decimals.
Round your answer to 4 decimals.
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