A smooth block is released at rest on a 45 incline and then slides a distance d. If time taken to slide on rough incline is n times as large as that to slide on a smooth incline, find the coefficient of friction.
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Downward acceleration is g sin ∅-∪gcos∅
Time taken is for incline distance=1/2(gsin∅-∪gcos∅)t^2
since angle is 45° and ratio of time is x,
(g/√2-∪g/√2)/(g/√2)=1/x^2
∪=1-(1/x^2)
Time taken is for incline distance=1/2(gsin∅-∪gcos∅)t^2
since angle is 45° and ratio of time is x,
(g/√2-∪g/√2)/(g/√2)=1/x^2
∪=1-(1/x^2)
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