If the two bodies are held in contact and one moves with respect to the other, the force P for just moving the body is
A. $$\frac{\mu }{Q}$$
B. $$\frac{Q}{\mu }$$
C. $${\mu Q}$$
D. $${\mu Q\phi }$$
Answer: Option C
This Question Belongs to Mining Engineering >> Mine Supports And Strata Control
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