Physics · 2019
JEE Main · 12 January 2019, Shift 2 · Q5
A particle of mass 20 g is released with an initial velocity 5 m/s along the curve from the point A, as shown in the figure. The point A is at height…
A particle of mass $\displaystyle 20$ g is released with an initial velocity $\displaystyle 5$ m/s along the curve from the point A, as shown in the figure. The point A is at height h from point B. The particle slides along the frictionless surface. When the particle reaches point $\displaystyle B$, its angular momentum about O will be :
(Take $\displaystyle \mathrm{g}=10 \mathrm{~m} / \mathrm{s}^2$ )
Official answer
(1)
$\displaystyle 6 \mathrm{~kg}-\mathrm{m}^2 / \mathrm{s}$
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JEE Main 2019 Physics question, with the answer from NTA’s final answer key. Where our answers come from.