A body takes `1(1)/(3)` times as much time to slide down a rough inclined plane as it takes to slide down an identical but smooth inclined plane,If the angle of inclination is `45^(@)` find the coefficient of friction.

A body takes ''n'' times as much time to slide down a rough inclined plane as it takes to slide down an identical but smooth inclined plane. If the angle of inclination of the inclined plane is ''theta'' . What is the coefficient of friction between the body and the rough plane ?

An object takes n times as much time as to slide down a 45^(@) rough inclined plane it takes to slide down a perfectly smooth inclined plane of the same inslination. The coefficient of kinetic friction between the object and the rough inclied is given by

A block takes a twice as much time to slide down a 45^(@) rough inclined plane as it takes to slide down a similar smooth , plane . The coefficient of friction is :

A block takes n times as much time to slide down a rough incline of 45^(@) as it takes to slide down a perfectly smooth 45^(@) incline. Coefficient of kinetic friction is :