AP EAMCET2010PhysicsLaws of Motion
An object takes n times as much time as to slide down a 45^ rough inclined plane as it takes to slide down a perfectly smooth inclined plane of the same inclination. The coefficient of kinetic friction between the object and the rough incline is given by
Options
- A(1- 1 n^2 )
- B( 1 1-n^2 )
- C1- 1 n^2
- D1+ 1 n^2
Correct answer
A. (1- 1 n^2 )
Step-by-step solution
The coefficient of kinetic friction between the object and the rough incline = (1- 1 n^2 ) = 45^ (1- 1 n^2 )=1- 1 n^2