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Questions  

A block has been placed on an inclined plane. The slope angle θ of the plane is such that the block slides down the plane at a constant speed. The coefficient of kinetic friction is equal to:

a
sin θ
b
cos θ
c
g
d
tan θ

detailed solution

Correct option is D

Block slides down with constant velocity somgsin⁡θ−μmgcos⁡θ=0⇒μ=tan⁡θ

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