In considering friction of a V-thread, the virtual coefficient of fri

1.	In considering friction of a V-thread, the virtual coefficient of friction (μ₁) is given by
A.	μ₁ = μ sin β
B.	μ₁ = μ cos β
C.	μ₁ = μ/sin β
D.	μ₁ = μ/cos β
Answer» E.

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In considering friction of a V-thread, the virtual coefficient of friction (μ₁) is given by

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