Mysterious Physical Phenomenon: Balancing a Badminton Racket in Water

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SUMMARY

The discussion centers on the intriguing phenomenon of balancing a badminton racket in water, specifically when positioned on its head. Despite the handle being heavier, it floats due to its lower density compared to the racket's head. The key takeaway is that buoyancy is influenced more by density than weight, explaining why the racket can balance upright on the pool bottom. This principle highlights the importance of understanding density and buoyant forces in fluid mechanics.

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  • Understanding of buoyancy and Archimedes' principle
  • Basic knowledge of density and its calculation
  • Familiarity with the concept of equilibrium in physics
  • Awareness of fluid mechanics principles
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This discussion is beneficial for physics students, educators, and anyone interested in understanding the principles of buoyancy and fluid mechanics, particularly in practical scenarios involving objects in water.

matsorz
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Hello. Today I came across a physical phenomenon ..
I played badminton in France, at the swimming pool. So I lost my paddle in the pool. (A badminton racket looks like a tennis racket)

In the water, no matter how I throw the racket down, balancing it on the head in the bottom of the pool, not the handle, but on the head by strings. It stands straight up.

How can this be? The handle is heavier than the head of the racket, but why it does not float, and how it manages to balance perfectly on the bottom of the pool? It would never made it on land ...
 
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It is not truly weight that matters, but density. The handle may be heavier than the rest of the racket, but it is also much thicker. It takes up much more space. So, overall, it is less dense. Therefore, the buoyant force on the handle is greater, making it want to float, while the rest of the racket is dense enough to want to sink.
 
Thanks, getting a grip to it now!
 

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