coefficient of static friction

8:33

5:27

18:45

5:26

11:18

10:49

7:32

7:32

7:50

2:36

2:36

2:22

2:00

7:39

7:37

36:44

20:03

کوتاه

9:43

3:58

14:24

3:28

9:15

3:36

20:10

1:11:01

3:38

1:40

2:44

9:01

11:28

3:44

10:44

کوتاه

4:51

6:51

2:40

5:29

5:22

3:32