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Sandpaper and asphalt both have relatively high coefficients of friction.
Ball bearings, oil, lubricant. Pretty much anything that reduces the friction between two interacting surfaces.
first when tie a knot and secoond when we walk on earth
Antaganism
created when two surfaces are touching and move past each other. car tyres on the road, moving something on the table... friction happens almost anywhere
Sandpaper and asphalt both have relatively high coefficients of friction.
friction
Ball bearings, oil, lubricant. Pretty much anything that reduces the friction between two interacting surfaces.
first when tie a knot and secoond when we walk on earth
Ice and glass both have very low coefficients of friction because they are very smooth, so it is easier for a substance to glide over them.
Examples of SLIDING FRICTION is pushing a heavy rock in your path, or moving a box on the floor.
If there is no friction like Ice has has no friction you will slip.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.Hopefully that answered your QuestionThank You for going on Answers.
The fact that you can walk without sliding is an example of friction.
Some examples of relatively high friction surfaces are: sand paper, grass, and asphalt. In general, the rougher the surface, the more friction it has.
Antaganism
created when two surfaces are touching and move past each other. car tyres on the road, moving something on the table... friction happens almost anywhere
Friction is not useful when ever we do not want it. Examples would be when two materials are rubbing against one another. The friction of ropes in pulleys eventually causes wear on both; friction of shoes or straps against the body causes blisters; friction airplanes travelling through the air - friction causes the plane to get hot; the moving parts of an engine get hot from friction...