Physics · Mechanics
An object is placed on a horizontal rigid plate, and the plate is tilted in the vertical plane. When the plate makes an angle 'φ' with the horizontal, the object just starts to slide. If the coefficient of static friction is 'μ', then 'φ' is equal to:
- 11/μ
- 2tan-1(μ)✓
- 3tan(μ)
- 4μ
Correct answer
tan-1(μ)
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