Question

A uniform chain of length "l" Is placed on a rough horizontal table with length l/n, where n>1 , hanging over tge 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
A) 1/n
B) 1/n-1
C) 1/n+1
D)n-1/n+1

Answer 1

the correct answer is B

1/n-1