If you are driving and the road is icy and a car is coming at you and you push your brakes you will slid and the two cars will crash.
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first when tie a knot and secoond when we walk on earth
Friction is helpful for these sports:FootballJavelinWeight liftingFriction is not helpful for these sports:SkiingDiving
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 helpful between car tyres and roads for grip. It is also sometimes used for heating as friction generates heat.
friction
By using kinetic friction
Helpful Friction.
when you use matches
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 necessary for wheels to rotate and nails to keep in walls.
Without friction, we couldn't walk or grip onto anything.
Examples of SLIDING FRICTION is pushing a heavy rock in your path, or moving a box on the floor.