Found this on 9gag and would like to know the answer

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Discussion Overview

The discussion revolves around a problem involving a pingpong ball and a steel ball suspended in water, as presented in a post on 9gag. Participants are exploring the conditions under which one side of a setup may tip or remain balanced, considering factors like buoyancy and weightlessness.

Discussion Character

  • Exploratory, Debate/contested

Main Points Raised

  • One participant proposes that if the pingpong ball and string are weightless, and both balls have the same volume with equal amounts of water in each container, the system should remain still and not tip.
  • Another participant suggests that the steel ball side would go down due to the buoyancy of the water, which reduces the effective weight of the steel ball, indicating a potential correction to the initial assumption.
  • A reference is made to a previous thread discussing the same problem, suggesting ongoing interest and exploration of the topic.

Areas of Agreement / Disagreement

Participants do not appear to reach a consensus, as there are competing views regarding the behavior of the system under the given conditions.

Contextual Notes

Assumptions about weightlessness, volume equality, and water levels are critical to the discussion, but these assumptions may not be universally accepted or fully explored.

pedromatias
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So a few nights ago I was on 9gag and stumbled upon this post: http://9gag.com/gag/abq50dE#comment I would really like to know the answer so if someone knows it please post it. Thanks in advance
 
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Assuming the pingpong ball and string are weightless, and the two balls are the same volume, and there's an equal amount of water in each container, then I'd say the thing stays still and doesn't tip at all. But after reading the comments on that website, I think I'm wrong. I think the steel ball side goes down because of the string holding the steel ball is holding less weight due to the buoyancy of the water holding up some of it. That sounds right to me.
 
And that's where the discussion should be.
 

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