An aircraft is flying at a height of 3400 m above the ground. It the angle subtended at a ground observation point by the aircraft positions 10 s apart is 
, then the speed of the aircraft is
A
(10.8 m/s)
B
(1963 m/s)
C
(108 m/s)
D
(196.3 m/s)
Text Solution
Verified by ExpertsThe correct answer is:
D
O is the observations points at the grounds, A and B are the positions of aircraft for which 
Time taken by aircraft from A to B is 10s.
In 
Speed of aircraft.
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