Integral Formulas for Center of Mass of Uniform Density

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SUMMARY

The discussion centers on calculating the center of mass for uniformly dense objects using the formula \(\frac{1}{V}\int x dV\). The participant expresses confusion about applying multiple variable integrals, suggesting a need for simpler methods. A solution is proposed for flat objects of uniform thickness \(H\), where the differential volume \(dV\) can be expressed as \(dV = y(x) H dx\), allowing the use of single-variable integrals instead.

PREREQUISITES
  • Understanding of integral calculus
  • Familiarity with the concept of center of mass
  • Knowledge of volume integration techniques
  • Basic grasp of uniform density principles
NEXT STEPS
  • Study single-variable integral applications in physics
  • Learn about calculating center of mass for different geometries
  • Explore the concept of uniform density in various materials
  • Review differential volume elements in calculus
USEFUL FOR

Students in physics or engineering courses, particularly those tackling problems related to center of mass and integration techniques.

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Homework Statement



I'm being given problems regarding the center of mass of a uniformly dense object, and I am told by the textbook to use:

[itex]\frac{1}{V}\int x dV[/itex]

I have no idea what to do with that. I'm pretty sure I won't be learning anything about multiple variable integrals for two years. There must be some other way?

Homework Equations





The Attempt at a Solution

 
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In case of a "flat" object of uniform thickness H, dV=y(x) H dx. So you need single-variable integrals.

ehild
 

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