NEET Solved Paper 2019 Question 32
Question: The radius of circle, the period of revolution, initial position and sense of revolution are indicated in the fig. [NEET 5-5-2019] Y-projection of the radius vector of rotating particle P is:
Options:
A) (a) $ (y)t=3cos( \frac{3\pi t}{2} ) $ , where y in m
B) $ (y)t=3cos( \frac{\pi t}{2} ) $ , where y in m
C) $ (y)t=-3cos2\pi t $ , where y in m
D) $ (y)t=4\sin ( \frac{\pi t}{2} ) $ , where y in m
Show Answer
Answer:
Correct Answer: B
Solution:
$ y=rcos\theta $
$ y=3cos\omega t $
$ y=3cos\frac{2\pi }{4}.t $
$ y=3cos\frac{2\pi }{2} $
