The elevators in the John Hancock building in Chicago move 522 ft in 44 s. What is their speed? Answer in m/s.

The speed is simply the ratio of distance and time. That is:

speed = distance / time

speed = 522 ft / 44 s

speed = 11.86 ft/s

Convert to m/s:

speed = 11.86 ft/s * (1 m/3.28 ft)

speed = 3.62 m/s