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Q.

In angle of friction between two surface is $37 °$ . If $\cos 37 ° = \frac{4}{5}$ coefficient of friction between
two surface is $\frac{P}{4}$ , then P =____

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answer is 3.

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Detailed Solution

$μ = Tan ϕ$

Question Image

$= Tan 37 ° = 3/4$

$μ = \frac{P}{4} ∴ \frac{P}{4} = \frac{3}{4} \Rightarrow P = 3$

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In angle of friction between two surface is37°. If cos37°=45coefficient of friction between two surface is P4, then P =____