Physics, 25.09.2019 13:30, janely6017

Ahot air ballon with a mass of 500kg ascends at a constant rate of 1.5 m/s for 20s. how much work is done by the upward force?

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Ahot air ballon with a mass of 500kg ascends at a constant rate of 1.5 m/s for 20s. how much work is...