rubbing your hands together produce heat that is friction.
No, the ideal is without friction.
There are many reasons why friction is an advantage to human motion. Friction helps humans to stop when they need to stop.
Advantage of friction photo
rubbing your hands togetherbrushing your teethchewing foodwalkingrunningpaintingrubbing your feet to the carpetrubbing your wrist togetherrubbing woodssitting in the chair
You walk and that is the example of friction
Blue cheese is a non-example of friction.
Without friction, some forms of mechanical advantage do not function. In most cases for a mechanical apparatus, a reduction in friction is usually accompanied by an increase in efficiency.
A example of friction is rubbing your hands together the heat you feel is friction. Oh dont be a shat head.
An example of fluid friction is the air resistance felt by an airplane.
Sliding your hands together is an example of sliding friction.
Wear and tear of moving parts would be reduced. Less energy would be needed to run the machine, as there would be less friction to be overcome. A well lubricated machine is more efficient than a neglected machine with unoiled parts.
Static friction