Time-lagged flights An airliner passes over an airport at
Chapter 3, Problem 41(choose chapter or problem)
Time-lagged flights An airliner passes over an airport at noon traveling 500 mi>hr due west. At 1:00 p.m., another airliner passes over the same airport at the same elevation traveling due north at 550 mi>hr. Assuming both airliners maintain their (equal) elevations, how fast is the distance between them changing at 2:30 p.m.?
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