A smooth block is released at rest on a 45º incline and then slides a distance d. The time taken to slide is n times as much to slide on rough incline than on a smooth incline. The coefficient of friction is-
A
B
C
D
Text Solution
Verified by ExpertsThe correct answer is:
C
When friction is absent
…….(i)
When friction is present
From Eq. (i) and (ii)
or 
or 
or 
or 
or 
or 
or 
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