Physics · 2026
JEE Main · 21 January 2026, Shift 2 · Q29
The pulley shown in figure is made using a thin rim and two rods of length equal to diameter of the rim. The rim and each rod have a mass of M. Two…
The pulley shown in figure is made using a thin rim and two rods of length equal to diameter of the rim. The rim and each rod have a mass of $\displaystyle M$. Two blocks of mass of $\displaystyle M$ and $\displaystyle m$ are attached to two ends of a light string passing over the pulley, which is hinged to rotate freely in vertical plane about its center. The magnitudes of the acceleration experienced by the blocks is $\displaystyle \_\_\_\_$ (assume no slipping of string on pulley).
Official answer
From NTA’s final answer key for this paper.
(3)
$\displaystyle \frac{(M-m) g}{\left[\left(\dfrac{8}{3}\right) M+m\right]}$
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JEE Main 2026 Physics question, with the answer from NTA’s final answer key. Where our answers come from.