A block of mass $m$ slides down the plane inclined at angle $30^{\circ}$ with an acceleration $\frac{g}{4}$. The value of coefficient of kinetic friction will be:

Question

$\frac{2 \sqrt{3}-1}{2}$

$\frac{\sqrt{3}}{2}$

$\frac{1}{2 \sqrt{3}}$

$\frac{2 \sqrt{3}+1}{2}$

Solution

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