Why does the pendulum stop swinging?

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Tags

1. #released
2. #chains
3. #friction
4. #slows
5. #force
6. #attachment
7. #moving
8. #raised
9. #points
10. #freely
11. #without
12. #extra
13. #forth
14. #swing
15. #stops
16. #eventually
17. #outside
18. #continues
19. #between
20. #until
21. #gravity