College Physics
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Author: Raymond A. Serway, Chris Vuille
Publisher: Cengage Learning
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A large weather balloon has a volume of 2000 m3 and a total weight of 800 N is filled with gas. The basket attached to the balloon has a weight of 1200 N and inside the basket there is a total mass M. The balloon starts from rest an ascends a total distance of 25 meters in 5 seconds. If the density of air is 1.20 kg/m3 and the average density of gas is 0.179 kg/m3, what is the value of the mass M in kg. Hint: the system has an acceleration Show a coordinate system and a free body diagram.
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