Physics · 2026
JEE Main · 21 January 2026, Shift 2 · Q32
A large drum having radius R is spinning around its axis with angular velocity ω, as shown in figure. The minimum value of ω so that a body of mass M…
A large drum having radius $\displaystyle R$ is spinning around its axis with angular velocity $\displaystyle \omega$, as shown in figure. The minimum value of $\displaystyle \omega$ so that a body of mass $\displaystyle M$ remains stuck to the inner wall of the drum, taking the coefficient of friction between the drum surface and mass $\displaystyle M$ as $\displaystyle \mu$, is :
Official answer
From NTA’s final answer key for this paper.
(3)
$\displaystyle \sqrt{\frac{g}{\mu R}}$
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JEE Main 2026 Physics question, with the answer from NTA’s final answer key. Where our answers come from.