Question

How to decrease and increase friction?

Answer 1

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 viscosi

Answer 2

HEY DEAR,
We can decrease friction between two surfaces by putting any lubricant between both surfaces and we can increase friction by in increasing the force which is applied on the surfaces to stick together...
HOPE IT WILL HELP YOU...