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Physics · 2014
JEE Main · 19 April 2014, Shift 1 · Q5
A particle is released on a vertical smooth semicircular track from point X so that OX makes angle θ from the vertical (see figure). The normal…
A particle is released on a vertical smooth semicircular track from point $\displaystyle X$ so that OX makes angle $\displaystyle \theta$ from the vertical (see figure). The normal reaction of the track on the particle vanishes at point Y where OY makes angle $\displaystyle \phi$ with the horizontal. Then :Official answer
(3)
$\displaystyle \sin \phi=\frac{2}{3} \cos \theta$
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JEE Main 2014 Physics question, with the answer from NTA’s final answer key. Where our answers come from.