(chatquestion)...Use related rates to solve problems involving angles or shadows Question A van is traveling due north at a speed of 70 km/h. If the van started off 5 km directly east of the city of Evanston, how fast, in radians per hour, is the angle opposite the northward path 0 changing when the van has traveled 9 km? (Leave your answer as an exact number.) Provide your answer below: rad/h dr

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