A hot air balloon loaded with sandbags has a total mass of M. It is descending with a downward acceleration of g/2, where g is the acceleration of free fall. How much
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![Air has weight. Flat, filled ballon. Inflated balloon and detonated balloon on a scale of the balance. Air Weight is the mass per unit volume of Earth's atmosphere. Physics chemistry vector Stock Air has weight. Flat, filled ballon. Inflated balloon and detonated balloon on a scale of the balance. Air Weight is the mass per unit volume of Earth's atmosphere. Physics chemistry vector Stock](https://as2.ftcdn.net/v2/jpg/03/04/16/75/1000_F_304167586_MLqTE53xOJwee6mJemlNPVrcDWP9IA3U.jpg)
Air has weight. Flat, filled ballon. Inflated balloon and detonated balloon on a scale of the balance. Air Weight is the mass per unit volume of Earth's atmosphere. Physics chemistry vector Stock
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