Floating of a long square bar: Experiment vs theory

Yonatan Feigel, Nikita Fuzailov

Research output: Contribution to journalArticlepeer-review


We carried out an experimental study of the floating of a square bar in water and found its equilibrium orientation (tilting angle) as a function of relative density ρ bar/ρ water. Though the theoretical solution of this problem was given in 1963 by Reid, we provided our solution that is more transparent and less cumbersome, enabling an introductory level physics student to follow it. Our experimental method is very simple and easily reproducible in a school-level physics laboratory, and obtained data fit the theoretical results quite reasonably.

Original languageEnglish
Article number035011
JournalEuropean Journal of Physics
Issue number3
StatePublished - May 2021

Bibliographical note

Publisher Copyright:
© 2021 European Physical Society.


  • Archimedes law
  • floating
  • square bar


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