At what rate is the angle decreasing

Reference no: EM131013574

A plane flying at a constant speed of 350 miles per hour is travelling at an elevation of 2.5 miles over the head of an observer. At what rate is the angle between the observer's line of sight to the plane and the ground decreasing when the plane is horizontaly 0.5 miles away from the observer? Give your answer in degrees/second.

Reference no: EM131013574

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