The time taken by an object to slide down 45$^\circ$ rough inclined plane is n times as it takes to slide down a perfectly smooth 45$^\circ$ incline plane. The coefficient of kinetic friction between the object and the incline plane is :

Question

$1 - {1 \over {{n^2}}}$

$1 + {1 \over {{n^2}}}$

$\sqrt {1 - {1 \over {{n^2}}}} $

$\sqrt {{1 \over {1 - {n^2}}}} $

Solution

Please login to view the detailed solution steps...

Go to DASH