A hot air balloon rising vertically is tracked by an observer located 4 km from the lift-off
Question:
A hot air balloon rising vertically is tracked by an observer located 4 km from the lift-off point. At a certain moment, the angle between the observer’s line of sight and the horizontal is π/5, and it is changing at a rate of 0.2 rad/min. How fast is the balloon rising at this moment?
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Let y be the height of the balloon in miles and th...View the full answer
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