| Difficulty | Secondary School | High school/other |
| ★ | Basic | Easy |
| ★★ | Demanding | Basic |
| ★★★ | Demanding | |
| ★★★★ | Difficult | |
| ★★★★★ | Very difficult |
In what direction is the elevator going? Also specify the maximum acceleration of the elevator at the beginning and in the end.
Answer: The elevator's maximum acceleration is at the beginning $0{,}39\ m/s^2$ and in the end $-0{,}39\ m/s^2$