Physics · 2020
JEE Main · 2 September 2020, Shift 1 · Q4
A bead of mass m stays at point P(a, b) on a wire bent in the shape of a parabola y=4 C x^2 and rotating with angular speed ω (see figure). The value…
A bead of mass $\displaystyle m$ stays at point $\displaystyle P(a, b)$ on a wire bent in the shape of a parabola $\displaystyle y=4 \mathrm{C} x^2$ and rotating with angular speed $\displaystyle \omega$ (see figure). The value of $\displaystyle \omega$ is (neglect friction) :
Official answer
(1)
$\displaystyle 2 \sqrt{2 g C}$
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JEE Main 2020 Physics question, with the answer from NTA’s final answer key. Where our answers come from.