A given object takes n times more time to slide down a 4 5 ∘ rough inclined plane as it takes to slide down a perfectly smooth 4 5 ∘ incline. The coefficient of kinetic friction between the object and

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A given object takes n times more time to slide down a 4 5 ∘ rough inclined plane as it takes to slide down a perfectly smooth 4 5 ∘ incline. The coefficient of kinetic friction between the object and the incline is :

TestHub · Accepted Answer

The coefficients of kinetic friction between the object and the incline μ = tan θ ( 1 − n 2 1 ​ ) ⇒ μ = 1 − n 2 1 ​ ( ∵ θ = 4 5 ∘ )

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