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3. An airplane with an airspeed of 80 meters per second is due east, gaining altitude, and has a line of flight of 25 degrees

3. An airplane with an airspeed of 80 meters per second is due east, gaining altitude, and has a line of flight of 25 degrees inclined with respect to the horizontal. At exactly 12:00 noon, a sports car is half a kilometer directly below the airplane and moving due south through a flat road at a horizontal speed of 50 meters per second. How fast are they separating at 12:01 PM?

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