A cubic block of mass m is sliding down on an inclined plane at 6 0 ∘ with an acceleration of 2 g , the value of coefficient of kinetic friction is

Question

A cubic block of mass m is sliding down on an inclined plane at 6 0 ∘ with an acceleration of 2 g ​ , the value of coefficient of kinetic friction is

TestHub · Accepted Answer

mg sin 6 0 ∘ − μ mg cos 6 0 ∘ = ma g sin 60 − μg cos 60 = 2 g ​ 2 3 ​ ​ − 2 μ ​ = 2 1 ​ μ = 3 ​ − 1

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