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As the air inside a hot-air balloon is heated, the density of the air inside the balloon decreases (see Chapter 20 and the Kinetic Theory of Gases and Ideal Gas Law Illustrations for a detailed explanation). The animation shows a hot-air balloon ascending with constant acceleration (position is given in meters and time is given in seconds). If the balloon fabric and basket have a combined mass of 300-kg, what is the density of the air inside the balloon? (Neglect the volume of the basket). The density of the air outside the balloon is 1.3 kg/m3. Restart.
Problem by Anne J. Cox
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