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Laws of Motion question

2024 · 8 Apr · Shift 2 · Q69
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  5. /2024 · 8 Apr · Shift 2 · Q69

Laws of Motion question

2024 · 8 Apr · Shift 2 · Q69

JEE MainPhysicsLaws of MotionMCQ+4 / −1
A given object takes n\mathrm{n}n times the time to slide down 45∘45^{\circ}45∘ rough inclined plane as it takes the time to slide down an identical perfectly smooth 45∘45^{\circ}45∘ inclined plane. The coefficient of kinetic friction between the object and the surface of inclined plane is :
  1. A
    1−1n21-\frac{1}{\mathrm{n}^2}1−n21​
  2. B
    1−1n2\sqrt{1-\frac{1}{\mathrm{n}^2}}1−n21​​
  3. C
    1−n21-n^21−n2
  4. D
    1−n2\sqrt{1-n^2}1−n2​
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