balloon figures
Rayan asked:

I’m only 9 and I can’t figure out how to get 2 hot air balloons to lift a gross weight of 150kg, and I’ve got an invention to make when I grow up that needs to carry a 150kg weight to at least 10 meters. Please help me!!
what if the temperature outside is about 25-30degrees Celsius?

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Comments

2 Responses to “What is the minimum size of a hot air balloon to lift 75kg ?”

  1. hobart_elf on January 24th, 2010 10:51 pm

    I believe the temperature of the hot air will influence this.

  2. Shieldgambit on January 27th, 2010 2:13 pm

    it depends on how hot the air is it goes by bernoulis’s equations

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