Coefficient of friction

  • Thread starter bigQ
  • Start date
  • #1
9
0
hello everyone. Can anyone please help with following questions?

1. Can coefficient of friction (both static and dynamic) be greater than one? What happens if it is greater than 1 ?
2. Why coefficient of kinetic friction is less than coefficient of static friction and why it decreases at higher velocities?

Thanking you in advance.:smile:
 

Answers and Replies

  • #2
Meir Achuz
Science Advisor
Homework Helper
Gold Member
3,537
117
1. There is nothing magical about 1 for COF.
2. Friction is due to temporary welding of the two surfaces, which is less effective as speed increases.
 

Related Threads on Coefficient of friction

  • Last Post
Replies
1
Views
2K
  • Last Post
Replies
6
Views
1K
  • Last Post
Replies
11
Views
3K
  • Last Post
Replies
11
Views
2K
Replies
4
Views
4K
Replies
16
Views
4K
  • Last Post
Replies
1
Views
2K
Replies
7
Views
10K
  • Last Post
Replies
12
Views
1K
  • Last Post
Replies
3
Views
3K
Top