Question: A jet is approaching a point along the level ground at a constant speed of 60 m/s and at a constant altitude. Att = 0

A jet is approaching a point along the level ground at a constant speed of 60 m/s and at a constant altitude. Att = 0 the angle of elevation of the jet is 35° and at t = 30 seconds, the angle of elevation is 75°. Find the altitude.

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