Helpful friction
Friction can be helpful and not helpful it is not helpful when you are running because it slows you down hope that'll help!!!! ;)
friction is not helpful in instances where ball bearings or petroleum lubricants are usually featured
friction makes motion possible
Decreased friction is very helpful in working machinery, because friction causes wear and tear.Mainly its very helpful in moving parts. Decreased friction is also helpful in electric cables and wires, as reduced friction reduces energy loss via heat.
Friction is helpful for these sports:FootballJavelinWeight liftingFriction is not helpful for these sports:SkiingDiving
Friction is helpful between car tyres and roads for grip. It is also sometimes used for heating as friction generates heat.
Kabaddi Kabaddi - 2003 is rated/received certificates of: India:U
Brakes.
It is helpful for when you walk .
By using kinetic friction
Practically friction is helpful in all the games. Few examples are soccer, cricket, basket ball etc..