An airplane is in supersonic flight at an altitude h. At what smallest distance a (along the horizontal) from the
observer on the ground is there a point from which the sound emitted by the airplane motors travels to the
observer faster than from point A that is directly above the observer
Answers
Answered by
3
Answer:
t = √(a^2+h^2 )/v_s => t_2=a/v_p +h/v_s ; t1 < t2¬
a < 2(v_p/v_s )/((v_p/v_s )^2-1) h
Answered by
1
Answer:
Required distance =
Explanation:
Airplane at at an altitude = height = h
Say, airplane is at a horizontal distance a from the observer.
Now, Distance between airplane and observer
Let, be the speed of plane.
and be the speed of sound.
Time taken by sound to reach observer intially = =
And, when airplane has reached overhead, then time,
As,
#SPJ2
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