A) Simple harmonic with time period 0.2 s
B) Simple harmonic with time period 0.4 s
C) Simple harmonic with amplitude 3 m
D) Not a simple harmonic but a periodic motion
Correct Answer: B
Solution :
[b] \[x=3\sin (5\pi t+\pi /3)+cos(5\pi t+\pi /3)\] Amplitude \[={{x}_{\max }}=\sqrt{{{3}^{2}}+{{1}^{2}}}=\sqrt{10,}\omega =5\pi \] \[T=\frac{2\pi }{\omega }=\frac{2\pi }{5\pi }=0.4s\]You need to login to perform this action.
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