A uniform chain of length l is placed on a rough table with length l /n (n > 1) hanging…
Physics · JEE Advanced · NTA Exams — Laws of Motion
A uniform chain of length l is placed on a rough table with length l/n (n > 1) hanging over the edge. If the chain just begins to slide off the table by itself from this position the coefficient of friction between the chain and the table is
- \(\frac{1}{n}\)
- \(\frac{1}{n-1}\)
- \(\frac{1}{n+1}\)
- \(\frac{n-1}{n+1}\)
Answer
(B) 1 n-1
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