Timeline for Movement of a helium filled vs lower-density-gas filled balloon inside an accelerated car
Current License: CC BY-SA 4.0
5 events
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| Oct 25, 2018 at 1:31 | comment | added | okcapp | I certainly didn't address that. I suppose that the balloon will somehow end up on the sphere whose radius is the string the balloon is tied to. And then (as you mentioned in your comment above) you will have to use the combined effect of the earth's gravitational pull on the air in the car with the "acceleration gravity" to find the direction of the density gradient. I would say that the string would point in the direction of the density gradient. Interesting problem. | |
| Oct 25, 2018 at 0:32 | comment | added | Danilo | Thank you for the reply! Excellent explanation for the phenomenon. Indeed, a lighter balloon will accelerate more rapidly. I should have specified before that the balloon is tied to the ground, and I wanted to relate the deviation angle to the density of the gas. | |
| Oct 25, 2018 at 0:11 | history | edited | okcapp | CC BY-SA 4.0 |
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| Oct 24, 2018 at 9:02 | history | edited | okcapp | CC BY-SA 4.0 |
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| Oct 24, 2018 at 8:55 | history | answered | okcapp | CC BY-SA 4.0 |