Civil Engineering - UPSC Civil Service Exam Questions - Discussion


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

[A]. tan α = 0.1
[B]. tan α = 0.2
[C]. tan α = 0.25
[D]. tan α = 0.8

Answer: Option C


No answer description available for this question.

Subha Annadurai said: (Mar 17, 2018)  
Explain the answer.

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