FrictionHard
Question
A solid hemisphere of weight P rests with its curved surface in contact with a rough inclined plane. A weight Q is placed at some point on the rim of the hemisphere to keep its plane surface horizontal then its minimum coefficient of friction is
Options
A.μ = 
B.μ = 
C.μ = 
D.μ = 
Solution
About O
P(R sin φ) = Q(1 - sin φ)R
sin φ = Q/(P + Q)
μ = tan φ =
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