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Question 5440
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Laws of Motion: Advanced Newton's Laws MCQ

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Advanced Newton's LawsHardQuestion 5440

Question

The angle of inclination at which a body starts to slide, with μₛ as coefficient of static friction, is called angle of repose. Its value is:
  1. A
    sin⁻¹(μₛ)
  2. B
    cos⁻¹(μₛ)
  3. C
    tan⁻¹(μₛ)
    Correct
  4. D
    tan⁻¹(1/μₛ)

Correct answer

tan⁻¹(μₛ)

Explanation

At angle of repose θᵣ: tanθᵣ = μₛ. θᵣ = tan⁻¹(μₛ).

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