1000 feet
Elevators typically travel at speeds ranging from 500 feet per minute to 2000 feet per minute, depending on the building's height and design. The average speed for most elevators is around 1000 feet per minute.
25 feet
1000/25 = 40 seconds
62 feet per second.
22.7 seconds.
10.49 seconds.
The service ceiling for the Boeing 787 is 43,000 feet.
The cruising altitude of Boeing 747 is 30,000 feet.
1000/25 = 40 seconds.
Approximately 1760 feet per second
292.21 MS