Question: what is the formula for the coefficient of kinetic friction?
Answer: μ k= (Fk / N ) = (F / W) or, μ k = M2g / M1g , or, μ k = M2 / M1 . Procedure: In this experiment, since the coefficient of kinetic friction is to be measured, all cases of constant speed motion of the block must be accompanied by tapping the incline.