A aircraft is flying at a uniform speed of 200m/s.If the angle subtended at an observation point on the ground by two positions of the aircraft 10S apart is 30deg, the height of the aircraft above the ground is
Asked by valavanvino1011
31st August 2018,
6:57 AM
Answered by Expert
Answer:
Let the airplane flies at a height h above the ground.
Observation positions of aircraft are 10 s apart means distance-wise they are 200×10 = 2000 m apart.
hence from figure, we can write, tan15 = 1000 / h or h = 1000 / tan15 = 3732 m
Answered by Expert
31st August 2018,
3:24 PM
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