ISC Syllabus
Friction: Static and kinetic friction, laws of friction, rolling friction, lubrication.
Friction; classical view and modern view of friction, static friction a self-adjusting force; limiting value; kinetic friction or sliding friction; rolling friction, examples.
Laws of friction: Two laws of static friction; (similar) two laws of kinetic friction; coefficient of friction µs = fs(max)/N and µk = fk/N; graphs. Friction as a non-conservative force; motion under friction, net force in Newton’s 2nd law is calculated including fk. Motion along a rough inclined plane – both up and down. Pulling and pushing of a roller. Angle of friction and angle of repose. Lubrication, use of bearings, streamlining, etc.
