It will depend on the speed of sound in the medium. Sonar is often used for underwater location and the speed of sound through water is quite different from the speed of sound through air.
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In 10 seconds the jet would travel 2.5 km
At 31 fps, the elevator will travel 372 feet in 12 seconds.
20
1 minute = 60 seconds so 10 mintes = 10*60 = 600 seconds. 2 metres per second = 2*600 = 1200 metres in 600 seconds
Distance = speed x time. However, no car will move that fast.