rubbing your hands together
jacking off
air friction also called air resistance or drag solid friction which is just normal friction and liquid friction like hydro-dynamics
some examples of good friction could be static electricity depending on the way you look at it. Also a pencil and eraser or even the breaks on your car rubbing against the inside of the tire when you hit the pedal down.
using a lubricant as in cycles, polishing the surface as in knives, and a cooling agent that reduces the heat by friction..
rubbing your hands together
jacking off
air friction also called air resistance or drag solid friction which is just normal friction and liquid friction like hydro-dynamics
friction
some examples of good friction could be static electricity depending on the way you look at it. Also a pencil and eraser or even the breaks on your car rubbing against the inside of the tire when you hit the pedal down.
Show examples. An eraser is a good one.
using a lubricant as in cycles, polishing the surface as in knives, and a cooling agent that reduces the heat by friction..
Friction is very useful but it has its own disadvantages. Friction causes wear and tear. Friction spoils the soles of our shoes. friction reduces speed This is all wrong some not useful types of friction are are when airplanes fly the friction causes heat that materials that will withstand which are costly.
Examples of SLIDING FRICTION is pushing a heavy rock in your path, or moving a box on the floor.
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