Question

give 3 ways to reduce friction and explain

Answer 1

1) Polishing
2)Lubrication
3)Ballbearings


If u want the explanation, then ask me.

Answer 2

we can reduce friction by:
1: polishing- polishing a rough surface smoothens it and reduces friction.
2: lubrication- friction is decreased by lubricating surfaces with oil grease and graphite.
3: streamlining- friction is minimum for a streamlined shape which is round in front and narrow at the back