The radius of circle, the period of revolution, initial position and sense of revolution are indicated in…

The radius of circle, the period of revolution, initial position and sense of revolution are indicated in the figure.

y-projection of the radius vector of rotating particle P is
  1. yt=-3cos2πt, where y in m
  2. yt=4sinπt2, where y in m
  3. yt=3cos3πt2, where y in m
  4. yt=3cosπt2, where y in m

Solution

T=4
ω=2π4=π2
A=3 m
At t=0, y=3 m
 y=3cosπ2t

Asked in: NEET 2019 (All India)

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