Question: a rocket rises vertically from a point on the ground 75,000 feet from a radar station. if the rockets is rising at a rate of

a rocket rises vertically from a point on the ground 75,000 feet from a radar station. if the rockets is rising at a rate of 40000 ft/min at the instant when it is 100,000 feet high, what is the rate of change, in radians/min, of the rocket's angle of elevation from the radar station at that instant?

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