A) (a)\[(y)t=3cos\left( \frac{3\pi t}{2} \right)\], where y in m
B) \[(y)t=3cos\left( \frac{\pi t}{2} \right)\], where y in m
C) \[(y)t=-3cos2\pi t\], where y in m
D) \[(y)t=4\sin \left( \frac{\pi t}{2} \right)\], where y in m
Correct Answer: B
Solution :
\[y=r\text{ }cos\theta \] \[y=3\text{ }cos\omega t\] \[y=3\text{ }cos\frac{2\pi }{4}.t\] \[y=3\text{ }cos\frac{2\pi }{2}\]You need to login to perform this action.
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