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Question 30214
JEE Physics · Medium

Laws of Motion and Friction: Friction on Incline MCQ

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Friction on InclineMediumQuestion 30214

Question

A block on an incline (angle θ) is on the verge of sliding down. The coefficient of static friction is:
  1. A
    sinθ
  2. B
    cosθ
  3. C
    tanθ
    Correct
  4. D
    1/tanθ

Correct answer

tanθ

Explanation

At the verge of sliding: μₛN = mg sinθ, N = mg cosθ. So μₛ = sinθ/cosθ = tanθ.

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