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Q.

The angle of friction ( $γ$ ) and the coefficient of limiting friction ( $μ$ ) are related as

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a

$γ = μ$

b

$\sin γ = \frac{1}{μ}$

c

$\tan γ = \frac{1}{μ}$

d

$\tan γ = μ$

answer is A.

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Detailed Solution

Question Image

$f_{m s} = μ_{s} N$

$R \cos γ = N \to (1)$

$R \sin γ = f_{m s}$

$(2) d i v i d e d w i t h (1)$

$\frac{R \sin γ}{R \cos γ} = \frac{μ_{s N}}{N}$

$μ_{S} = \tan γ$

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