Archimedian Principle and Vibrating Cylindrical Buoy Analysis

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SUMMARY

The discussion centers on the application of the Archimedean principle to analyze the buoyancy and oscillation of a cylindrical buoy with a diameter of 60 cm. The buoy vibrates with a period of 2 seconds when displaced in water. The relationship between the period and angular frequency is established as w = π, leading to the need for modeling the system using differential equations to determine the weight of the buoy. The conversation highlights the integration of physics and differential equations in solving real-world problems.

PREREQUISITES
  • Understanding of the Archimedean principle
  • Knowledge of oscillatory motion and period calculations
  • Familiarity with differential equations
  • Basic principles of buoyancy and fluid mechanics
NEXT STEPS
  • Explore the derivation of the period of oscillation for buoyant bodies
  • Study the application of differential equations in physical systems
  • Investigate the effects of varying diameters on buoyancy and oscillation
  • Learn about modeling oscillatory motion in MATLAB or Python
USEFUL FOR

Students in physics and engineering, particularly those focusing on fluid mechanics and oscillatory systems, as well as educators seeking to enhance their teaching of the Archimedean principle and its applications.

kasse
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Homework Statement



The Archimedian principle stetes that the bouyancy force equals the weight of the water displaced by the body (partly or totally submerged). A cylindrical buoy of diameter 60cm is floating in water tiwh its axis vertical. When dupressed downward in the water and released, it vibrates with period 2 sec. Ehat is its weight?

2. The attempt at a solution

The period is 2*pi/w, so that w=pi. But what then?
 
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Model the system. You know the forces acting in it (a function of displacement) so you have a differential equation to solve.
 
This must be the first time I've seen m g dabbling in physics and diff eqs..
I hope he won't neglect the pure math section. :smile:
 

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