coefficient of friction

5:09

2:22

3:03

7:37

4:18

5:16

4:59

16:29

17:06

5:11

2:47:19

24:49

4:24

16:19

7:01

14:56

59:26

12:51

9:50

7:21

3:50

9:01

1:25

5:48

8:28

8:33

12:16

7:41

10:56

3:38

10:32

2:24

22:57

14:26

5:08

5:40

8:10

21:02

6:52

21:01

5:09

13:05

2:34

00:37

6:12

16:09

7:23

19:59

17:30

54:30

5:16

18:17

2:34

7:59

9:40

8:53

6:45

2:14

18:18

14:14