how fast is the balloon rising at this moment?

SoccerBoss
Category:
Calculus
Price: $5 USD

Question description

a hot air balloon is rising vertically is tracked by an observer located 4km from the lift-off point. at a certain moment, the angle between the observer's line of sight and the horizontal is pi/5, and it is changing at a rate of 0.2 radians per minute. how fast is the balloon rising at this moment?


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(Top Tutor) Daniel C.
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