chapter 9 work and energy

4:52

11:11

2:23

2:23

14:21

8:19

9:50

9:11

4:51

4:51

4:49

9:54

3:27

5:23

5:30

4:47

4:52

7:32

6:56

8:00

11:09

3:58

3:46

9:45

14:11

3:46

2:26

45:53

7:07

10:45

10:00

3:13

11:27

10:03

3:51

3:27

6:39

3:33

11:10

9:29