For the toppling of the hexagon as shown in the figure, the coefficient of friction must be
A
> 0.21
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B
< 0.21
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C
= 0.21
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D
< 0.21
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Solution
The correct option is A > 0.21 To prevent slipping F=μN=μmg the body will topple about point O, if F.h≥mga2
here h = 2a cos30∘ = a√3 μmga√3≥mga2 μ≥12√3 μ≥0.21