AP EAMCET Medical 24 Apr 2019 Shift 2 Paper

A body slides down in a time 't' from rest along a smooth inclined plane making an angle of 45° with the horizontal. When the same body slides down from rest along a rough inclined plane of same length making the same angle, it takes time ‘pt' then the coefficient of friction between the body and the rough plane is (p is a constant)