Understanding the buoyant force in archimedes principle

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Homework Help Overview

The discussion centers around understanding the concept of buoyant force as described by Archimedes' principle, particularly in relation to floating and submerged objects.

Discussion Character

  • Conceptual clarification, Assumption checking

Approaches and Questions Raised

  • The original poster expresses confusion about how buoyant force relates to the volume of displaced fluid when an object is floating versus fully submerged. Other participants clarify that the buoyant force is equal to the weight of the displaced fluid and discuss the implications of different volumes in each scenario.

Discussion Status

Participants are exploring the relationship between buoyant force and the volume of fluid displaced in different situations. Clarifications have been offered regarding the formula for calculating buoyant force, but no consensus has been reached on the original poster's confusion.

Contextual Notes

There is an underlying assumption that the original poster may not fully grasp the implications of buoyancy in floating versus submerged states, which is being questioned and clarified throughout the discussion.

suzukits
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I'm really confused about the buoyant force.
What I've understood is that the buoyant force of an object is equal to the volume of the displaced fluid even if it is floating (not fully immersed in the fluid).
How can this be possible?
The volume of the object is the amount of water displaced when THE WHOLE OBJECT IS IMMERSED right??

I would be really thankful if someone could clarify this
Thank you!
 
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The buoyant force equals the weight of the displaced fluid. When a body floats, the volume of displaced fluid is less than the volume of the object itself. If that same body is fully submerged, the buoyant force will be greater since it will displace more fluid.
 
Oh okay, and I can use the same formula for both cases? (p*V*g)
 
suzukits said:
Oh okay, and I can use the same formula for both cases? (p*V*g)
Sure. As long as you use the correct volume of fluid displaced.
 
Thank you so much!
 

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