A) \[\frac{2\pi }{\omega }\]
B) \[\frac{\omega }{2\pi }\]
C) \[\frac{\omega }{\pi }\]
D) \[\frac{\pi }{4\omega }\]
E) \[\frac{\pi }{\omega }\]
Correct Answer: D
Solution :
Speed is maximum when \[y=A\] \[\therefore \] \[A=A\cos \left( \omega t+\frac{\pi }{4} \right)\] \[\Rightarrow \] \[\cos \left( \omega t+\frac{\pi }{4} \right)=1\] \[\Rightarrow \] \[\omega t+\frac{\pi }{4}=0\] \[\Rightarrow \] \[t=-\frac{\pi }{4\omega }\]You need to login to perform this action.
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