Jan
21
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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2 Responses to “What is the minimum size of a hot air balloon to lift 75kg ?”
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I would also like to say to everyone that this is a very good beginners instructional Video. Clear instructions and easy to follow creations. Plus heaps of lovely designs to practice, beautiful balloon designs that you can learn to twist in literally minutes, you have the ability to be an instant hero at parties, charity events, children church, festivals, and friends or even with your own kids! You may even perform your new found skills in hospitals and schools too!
If you want to 


I believe the temperature of the hot air will influence this.
it depends on how hot the air is it goes by bernoulis’s equations