Question

the angle of friction between two surfaces is 37 degree if cos 37 degree equal to 4 / 5 then coefficient of static friction between two surfaces is

Answer 1

Acc. To me,

Your answer is 3/4

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Formula of angle of friction

tanФ=μ

Ф is angle of firction,μ is coefficient of static friction

tan 37 =μ

cos 37 =4/5

by pythagorus theorem

tan 37 =μ

3/4=μ

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I hope you understand my answer

Answer 2

Coefficient of friction

μ = tan37

μ = 3 /4