explain how we can reduce and increase friction
Answers
Answer:
There are several ways to reduce friction:
The use of bearing surfaces that are themselves sacrificial, such as low shear materials, of which lead/copper journal bearings are an example.
Replace sliding friction with rolling element friction, such as with the use of rolling element bearings.
There are two methods of increasing friction: one is by making the surfaces rough and the other by increasing the mass of the object that is moving. For example, the tyres of vehicles have treads (these are the 'designs' that you can see on the tyre surface), which increase the friction between the tyre and the road.
Answer:
Create a “rougher” or more adhesive point of contact. ...
Press the two surfaces together harder. ...
Stop any relative motion. ...
Remove lubrication between the two surfaces. ...
Remove wheels or bearings to create sliding friction. ...
Increase the fluid viscosity.