Apparent weight of immersed bodies

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SUMMARY

The discussion centers on calculating the relative density of an object weighing 250N in air and 150N when fully immersed in water. According to Archimedes' principle, the loss of weight in water (100N) indicates the weight of the water displaced by the object. The relative density can be determined by dividing the weight of the object by the weight of the displaced water, leading to a relative density of 2.5 for the object.

PREREQUISITES
  • Understanding of Archimedes' principle
  • Basic knowledge of weight and buoyancy
  • Familiarity with relative density calculations
  • Ability to perform simple algebraic equations
NEXT STEPS
  • Study Archimedes' principle in detail
  • Learn how to calculate buoyant force
  • Explore relative density and its applications in fluid mechanics
  • Practice problems involving weight measurements in different fluids
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Students studying physics, particularly those focusing on fluid mechanics, as well as educators and anyone interested in understanding buoyancy and relative density concepts.

sreemenon
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Homework Statement


An object has a weight of 250N, when weighed by spring balance. The same object is fully immersed in water, then the spring balance reading shows, 150N. How to determine the relative density of the object.

Homework Equations



Archimedes' principle

The Attempt at a Solution



No idea!
 
Last edited:
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What weight of water does its volume displace?
 

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