Question

how is friction recued in air ?​

Answer 1

1)Friction can be reduced by making the surface smooth by polishing.

2)Friction can be reduced by applying lubricants (like oil or grease) to the rubbing surface.

3)Friction can be reduced by using wheels to move objects.

4)Friction can be reduced by using ball bearing between the moving parts of machine.

Answer 2

Answer:

Friction can be reduced in air by making the shape of the object Streamlined.