Physics · 2019
JEE Main · 11 January 2019, Shift 2 · Q6
A string is wound around a hollow cylinder of mass 5 kg and radius 0.5 m. If the string is now pulled with a horizontal force of 40 N, and the…
A string is wound around a hollow cylinder of mass $\displaystyle 5$ kg and radius $\displaystyle 0.5$ m. If the string is now pulled with a horizontal force of $\displaystyle 40$ N, and the cylinder is rolling without slipping on a horizontal surface(see figure), then the angular acceleration of the cylinder will be (Neglect the mass and thickness of the string) :
Official answer
(3)
$\displaystyle 16 \mathrm{rad} / \mathrm{s}^2$
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JEE Main 2019 Physics question, with the answer from NTA’s final answer key. Where our answers come from.