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Suppose we want to know the weight of a hot-air balloon...
When we release this balloon, Oops, it has a "free-ascend" instead of
"free fall". Does this mean that the weight of a hot-air balloon is
negative?
Is not this definition of weight using "free fall acceleration" still
problematic? :-)
Is not this definition of weight using "free fall acceleration" still
problematic? :-)