Pressure exerted by a fluid in a closed container

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Discussion Overview

The discussion revolves around the behavior of water flowing from a hole in a container when the container is in free fall. Participants explore the effects of gravity on the water flow and whether it would follow a parabolic trajectory or behave differently in a weightless environment.

Discussion Character

  • Exploratory, Conceptual clarification, Debate/contested

Main Points Raised

  • One participant suggests that water will still exert pressure on the walls of the container and flow out, questioning the effect of gravity on this process.
  • Another participant introduces a thought experiment involving a freely falling elevator, questioning whether a baseball would drop if released.
  • Some participants agree that the baseball would not drop, indicating that everything would experience weightlessness in free fall.
  • There is a suggestion that if the water flow stops due to the weightless condition, it connects back to the original question about the water's behavior.

Areas of Agreement / Disagreement

Participants express differing views on the behavior of water in free fall, with some suggesting it would stop flowing while others explore the implications of weightlessness. The discussion remains unresolved regarding the exact nature of the water flow in this scenario.

Contextual Notes

Assumptions about the effects of gravity and pressure in a free-fall scenario are not fully explored, and the implications of weightlessness on fluid dynamics are not definitively established.

Shivansh Mathur
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When a hole is made in the side of the container holding water, water flows out and follows a parabolic trajectory. If the container is dropped in free fall, what will happen to the water flow?

I think that the water flow will follow a similar trajectory..what effect can gravity have on it?
it will still exert pressure on the walls of the container and therefore will come out. What can be the change?
Am i correct?
 
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Imagine that you are in a freely falling elevator. In such a situation, if you let go of a baseball from your hand, do you expect that it would drop to the floor?
 
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yes it will drop.
 
The surprising thing is that, no, it wouldn't! Everything would become as if weightless. You would let go of the ball and it would just float there.
 
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yeah so you mean that we will be traveling at the same rate as the ball does, and we won't see it falling down. Then connecting it to the original question says that the flow of water will stop?
 
Right.
 
Thanks. Actually i thought on the same line but got confused.
 

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