Question

A body of mass $M$ starts sliding down on the inclined plane where the critical angle is $\angle ACB = 30^{\circ}$ as shown in figure. The coefficient of kinetic friction will be

• A. $Mg / \sqrt{3}$
• B. $\sqrt{3} Mg$
• C. $\sqrt{3}$
• D. None of these

Answer 1

Answer: (A)

$Mg / \sqrt{3}$

Answer 2

$Mg / \sqrt{3}$