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Discussion :: UPSC Civil Service Exam Questions

  1. The effort 'P' to be applied horizontally to pull a weight 'W' on a plane inclined at an angle α with the horizontal is given by (tan θ is the coefficient of friction)

    2. A.
    P = W tan (α + θ)
    B.
    P = W tan (α - θ)
    C.
    D.

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    Answer : Option A

    Explanation :

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