The hint provided in this question is the envelope that defines the amplitude of the damped oscillations as a function of time.
As a result the related formula is
A damped =
Aoriginal
Given;
A damped = 1% x Aoriginal
=0.01 Aoriginal
So, 0.01 Aoriginal =
Aoriginal
So,
=0.01
So, t=0.2878 s
So, one should wait 0.2878 s before the amplitude of the damped oscillations is 1% of the original amplitude.
Answer : 0.288 s
HOPE THE ABOVE ANSWER CLARIFIES THE DOUBT. ALL THE BEST TO THE STUDENT IN HIS COURSE WORK.
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