An aircraft is flying at a height of 34000𝑚 above the ground. If the angle subtended at a ground
observation point by the aircraft positions 10𝑠 apart is 30°, then the speed of the aircraft is

Question : An aircraft is flying at a height of 34000𝑚 above the ground. If the angle subtended at a ground observation point by the aircraft positions 10𝑠 apart is 30°, then the speed of the aircraft is

(A) 19.63ms^{-1}

(B) 1963ms^{-1}

(C) 108ms^{-1}

(D) 196.3ms^{-1}

Answer : option (D)

Solution :

An aircraft is flying at a height of 34000𝑚 above the ground. If the angle subtended at a ground
observation point by the aircraft positions 10𝑠 apart is 30°, then the speed of the aircraft is
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