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Title: gaurav
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Posted On: Aug 28, 2011 07:44 PM
  why gass ballon float on air ?? reason other than density and mass..      
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Gaurav Rajput
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yash  maheshwari

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Aug 28, 2011 10:14 PM

the wt of the gas balloon is less then the byuoyancy force of air therefore the net force is in the upward direction. 
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