UPSC Civil Service Exam Questions - Civil Engineering Questions and Answers

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Discussion :: UPSC Civil Service Exam Questions

In the figure shows two blocks of equal weights designated as W₁ and W₂ connected together by a rod and resting on an inclined plane whose angle α can be varied. The coefficients of friction between the blocks and the surface of the plane are μ₁ = 0.2 and μ₂ = 0.3. The value of angle α at which the slipping will commence is given by