1,000 m QuestiIOn (a) A light aircraft is flying at a constant altitude of 1,000 m in a straight line over level terrain, and is approaching ground point P. At 11.14 am, the aircraft is over ground point A, and the angle of elevation of its nose from P is 20°. Precisely 30 seconds later, it is over ground point B where the angle of elevation of its nose from P is 60°. 600 P. 200 B. i. To the nearest metre, determine the straight-line ground distances AP and BP. ii. Determine the speed of the aircraft in km. h-, to the nearest unit.

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