Question

why wooden has least friction value and why?​

Answer 1

$\huge\mathcal{Answer:}$

A smooth surface has smaller hills and valleys. There are also electrostatic attractions between surfaces, but these are weaker than the physical barriers to sliding. Liquids such as water and oil reduce friction because they keep the two surfaces from contacting each other.

Answer 2

Answer:

here is your answer dear

because

A smooth surface has smaller hills and valleys.