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Mathematics 21 Online
OpenStudy (anonymous):

Hot air Balloon Problem: An observer is standing at a constant 15m away from an air balloon. The air balloon has a vertically constant rate of 3 m/s! I'm trying to find the rate at which the distance between the observer and the balloon is changing WHEN the balloon is 20 meters from the ground!!! But wait, there is more (part b): At what rate is the angle between the ground and the observer's line of sight to the balloon changing when the balloon is 20meters above the ground? o_0

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