A given object takes n times more time to slide down a 45^(@)rough inclined plane as it takes to slide down a perfectly smooth 45^(@) incline. The coefficient of kinetic friction between the object and the incline is :

A given object takes n times more time to slide down a 45^(@)rough inc

1.	A given object takes n times more time to slide down a 45^(@)rough inclined plane as it takes to slide down a perfectly smooth 45^(@) incline. The coefficient of kinetic friction between the object and the incline is :
Answer» `(1)/(2- n^2)` `1 - (1)/(n^2)` `SQRT(1 - (1)/(n^2))` `sqrt((1)/(1-n^2))` ANSWER :B

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A given object takes n times more time to slide down a 45^(@)rough inclined plane as it takes to slide down a perfectly smooth 45^(@) incline. The coefficient of kinetic friction between the object and the incline is :

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