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English, 19.02.2021 07:50 amselah3571

A building has two elevators that both go above and below the ground. At a certain time of day, the travel time it takes elevator A to reach height h in meters is 0.8h+16 seconds. The travel time it takes elevator B to reach height h in meters is -0.8h+12 seconds. What is the height of each elevator at this time?
How long would it take each elevator to reach ground level at this time?
If the two elevators travel toward one another, at what height do they pass each other? How long would it take?
If you are on an underground parking level 14 meters below ground, which elevator would reach you first?

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