Physics · 2023
JEE Main · 29 January 2023, Shift 2 · Q3
The time taken by an object to slide down 45^° rough inclined plane is n times as it takes to slide down a perfectly smooth 45^° incline plane. The…
The time taken by an object to slide down $\displaystyle 45^{\circ}$ rough inclined plane is $\displaystyle n$ times as it takes to slide down a perfectly smooth $\displaystyle 45^{\circ}$ incline plane. The coefficient of kinetic friction between the object and the incline plane is:
Official answer
From NTA’s final answer key for this paper.
(3)
$\displaystyle 1-\frac{1}{n^2}$
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JEE Main 2023 Physics question, with the answer from NTA’s final answer key. Where our answers come from.