A disc of mass M & radius R is placed a rough horizontal surface with its axis horizontal. A light rod of length '2R' is fixed to the disc at point 'A' as shown in figure and a force 
Mg is applied at the other end. If disc starts to roll without slipping find the value of
''10× μ min '' where μ min is minimum coefficient of friction b/w disc & horizontal surface required for pure rolling–
Text Solution
Verified by ExpertsThe correct answer is:
CHECK THE SOLUTION.
Sol. F = Ma …….(i)
Mg. 2R – F.R = 
……...(ii)
a = 2g
∴ F = 2Mg ≤ ≤ μ N
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