Thread: A ballon in a car.
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Old 23-10-2009, 04:44 PM
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troypiggo (Troy)
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troypiggo is offline 		 
Join Date: Nov 2008
Location: Brisbane, Australia
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I've tried it and it's true. It's to do with momentum of the air in the car, and that air is heavier than the helium in the balloon.
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