Question

name the kind of fritional friction , that comes into play, when a book, kept on a collection of cylinderical pencils, is moved by pushing it .

Answer 1

It is a rolling friction.

Answer 2

Rolling friction comes into play when a book is kept on the cylindrical pencil is moved by pushing.

Rolling resistance stance, also called rolling friction or, is the force resisting the motion when a body rolls on a surface.

This is mainly caused by non-elastic effects; that is, not all the energy needed for deformation (or movement) of the wheel, roadbed, etc.