A lubricant
== == It is a substance, as oil or grease, that reduces friction when applied as a surface coating to moving or working parts of a mechanism.
speed
Lubricants are applied to reduce friction between surfaces in contact with each other. They help to minimize wear and heat generation by providing a smooth film that separates and reduces the resistance between moving parts.
Static friction is not necessarily an applied force, but something that occurs when there is an applied force. Static friction occurs when there is no motion and there is a force being applied to an object on a surface.
The surface that has the lowest friction is a wet surface, or a surface that has been oiled with light oil, or the air cushion underneath a hovercraft. Then there is the train that runs on magnetic rails, hovering above the rails without physically touching.
It is friction force
Airtrack reduces friction by creating a cushion of air that separates the object from the surface it is moving on. This cushion of air effectively reduces the contact area between the object and the surface, minimizing friction and allowing for smoother movement.
A substance applied to a surface to reduce friction is called a lubricant. Lubricants help to reduce the friction between two surfaces in contact, allowing them to move more smoothly against each other.
i honestly didnt get ur ans but ill still try to help u out.. friction is the opposing force to a motion, when the surface is very smooth friction reduces.. i.e the smoother the surface the less the friction.. for eg.. if u spill oil on the road the car starts slipping and becomes hard to stop it i.e bcos the surface becms smoother and reduces friction..
Static friction. The frictional force is greater then the force applied, meaning the object can't move.
Friction.
Bearings reduce friction by providing smooth metal balls or rollers, and a smooth inner and outer metal surface for the balls to roll against. The smoothness of the metal reduces the friction and the surface area.