Why do pilots say rotate?

Related questions

1. How does it feel when flight takes off?
2. How much does it cost to fill up a a380?
3. Can an a380 fly on one engine?
4. Can pilots see at night?
5. How many 747 crashed?
6. What happens if a plane engine goes out?
7. Why do pilots turn off cabin lights?
8. How much fuel do Jets use to take off?
9. How much does it cost to fill a a380 with fuel?
10. How much does it cost to fill a 737 with fuel?

Tags

1. #rotated
2. #longer
3. #climb
4. #attitude
5. #second
6. #should
7. #raised
8. #which
9. #speeds
10. #airplane
11. #decision
12. #pilots
13. #there
14. #answer
15. #stopping
16. #first
17. #committed
18. #known
19. #possible
20. #speed
21. #takeoff
22. #three
23. #during