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A balloon rises vertically at the rate of 10 ft/sec. A person watches the balloon ascend from a point on the ground 100 ft away from the spot below the rising balloon. At what rate (radian/sec) is the observer's eye rotating upward to follow the balloon when the balloon is 50 ft above the level of the observer's eye?

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dandy0425

Answer:

A balloon rises vertically at the rate of 10 ft/sec. A person watches the balloon ascend from a point on the ground 100 ft away from the spot below the rising balloon. At what rate (radian/sec) is the observer's eye rotating upward to follow the balloon when the balloon is 50 ft above the level of the observer's eye?

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