Question

Mention two simple method for reducing friction?

Answer 1

1-apply sum lubricant on the surface
2-we can use ball bearings in to change sliding friction into rolling friction and rolling friction is smaller than sliding friction

Answer 2

Answer:

The two simple methods for reducing friction are :-

Explanation:

(a) polishing surface : it makes the surface even and hence reduce friction.

( b) By streamlining : streamlining reduces the area of contact and thus reduce friction.