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Laws of Motion question

2023 · 29 Jan · Shift 2 · Q53
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  5. /2023 · 29 Jan · Shift 2 · Q53

Laws of Motion question

2023 · 29 Jan · Shift 2 · Q53

JEE MainPhysicsLaws of MotionMCQ+4 / −1
The time taken by an object to slide down 45 ∘^\circ∘ rough inclined plane is n times as it takes to slide down a perfectly smooth 45 ∘^\circ∘ incline plane. The coefficient of kinetic friction between the object and the incline plane is :
  1. A
    1−1n21 - {1 \over {{n^2}}}1−n21​
  2. B
    1+1n21 + {1 \over {{n^2}}}1+n21​
  3. C
    1−1n2\sqrt {1 - {1 \over {{n^2}}}}1−n21​​
  4. D
    11−n2\sqrt {{1 \over {1 - {n^2}}}}1−n21​​
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