Physics, 30.01.2020 10:55, Truezoe09

Hot air balloon a is rising upward at a rate of 10.0 m/s. a passenger aboard balloon a observes balloon b going down at a relative rate of 12.5 m/s. what is the velocity of balloon b relative to the ground? assume that up is positive.

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Hot air balloon a is rising upward at a rate of 10.0 m/s. a passenger aboard balloon a observes ball...