Physics · 2025
JEE Main · 2 April 2025, Shift 1 · Q28
A cord of negligible mass is wound around the rim of a wheel supported by spokes with negligible mass. The mass of wheel is 10 kg and radius is 10 cm…
A cord of negligible mass is wound around the rim of a wheel supported by spokes with negligible mass. The mass of wheel is $\displaystyle 10$ kg and radius is $\displaystyle 10$ cm and it can freely rotate without any friction. Initially the wheel is at rest. If a steady pull of $\displaystyle 20$ N is applied on the cord, the angular velocity of the wheel, after the cord is unwound by $\displaystyle 1$ m, would be :
Official answer
From NTA’s final answer key for this paper.
(2)
$\displaystyle 20 \mathrm{rad} / \mathrm{s}$
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JEE Main 2025 Physics question, with the answer from NTA’s final answer key. Where our answers come from.