8.0k views
3 votes
Which would you expect to have the greatest amount of friction?

a- a smooth surface on a smooth surface
b-a smooth surface on a rough surface
c-a rough surface and air
d-a rough surface on a rough surface

2 Answers

5 votes
D...........................................
User Acadia
by
8.2k points
4 votes
D,  this adds the most friction to itself 
User Chanrithisak Phok
by
7.6k points

No related questions found

Welcome to QAmmunity.org, where you can ask questions and receive answers from other members of our community.