1. A
A Doesn’t Tie Shoe Lace - Comparison
START
Assume you travel at
1 line a slide when walking
1 line a slide due to the moving walkway
2 slides to tie shoelace
END B
B Ties Lace On Moving Walkway C
C Ties shoelace just before the walk way D
D Ties Shoe lace after getting off the moving walkway

2. A B C D

3. A B
C Ties Shoe lace For 2 Slide Lengths C D

4. A B C D

5. A
B Ties Shoe lace For 2 Slide Lengths B C D

6. A B
C Now Moves C D

7. A B
B Now Moves C D

8. A B C D

9. A B C D

10. A B C
D Stops to tie lace D

11. A B C D

12. A B C
D Moves Off D

13. A B C D

14. A B C D