The height of the plane when it gets to the tower would be 600 yards, which is greater than the height of the tower. Hence, "the plane clears the tower with about 6 yards to spare."
Given the Parameters :
If the rate of ascent of the airplane is proportional to the distance traveled, that is (1 yard length = 1 yard height gained).
Then after traveling 600 yards to the position of the control tower, then the height of the plane would be 600 yards
Difference in height :
(600 yards - 594 yards) = 6 yards
Therefore, the most appropriate Statement is that, "the plane clears the tower with about 6 yards to spare."
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