A hot-air balloon is accelerating upward under the infl
Chapter , Problem 48(choose chapter or problem)
A hot-air balloon is accelerating upward under the infl uence of two forces, its weight and the buoyant force. For simplicity, consider the weight to be only that of the hot air within the balloon, thus ignoring the balloon fabric and the basket. The hot air inside the balloon has a density of rhot air 5 0.93 kg/m3 , and the density of the cool air outside is rcool air 5 1.29 kg/m3 . What is the acceleration of the rising balloon?
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