An integral for rotational movement equations

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SUMMARY

The discussion centers on the integration of rotational movement equations, specifically the relationship between angular velocity (ω), angular acceleration (α), and angular displacement (θ). The integral of the equation dω = α dθ results in (ω²)/2 = αθ, provided that α is constant. Participants emphasized the importance of including the constant of integration, "+ C," in the final expression. This highlights the fundamental principles of calculus as applied to physics in the context of rotational dynamics.

PREREQUISITES
  • Understanding of calculus, specifically integration techniques.
  • Familiarity with basic physics concepts, particularly rotational motion.
  • Knowledge of angular kinematics, including terms like angular velocity (ω), angular acceleration (α), and angular displacement (θ).
  • Experience with the notation and application of differential equations in physics.
NEXT STEPS
  • Study the derivation of angular kinematic equations in rotational motion.
  • Learn about the implications of the constant of integration in physical equations.
  • Explore advanced topics in calculus, such as multivariable calculus and differential equations.
  • Investigate the applications of rotational dynamics in real-world scenarios, such as in engineering and mechanics.
USEFUL FOR

Students in high school physics and calculus courses, educators teaching rotational dynamics, and anyone interested in the mathematical foundations of physics related to rotational movement.

Solar Eclipse
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Im talking calc and physics in high school right now and I was bored and messed with my formulas but I need some help now.It's for rotational movement.
If I have [tex]\varpi[/tex]d[tex]\varpi[/tex]=[tex]\alpha[/tex]d[tex]\theta[/tex] and then I take the integral will it be ([tex]\varpi[/tex]^2)/2 = [tex]\alpha\theta[/tex] or did I do it all wrong?
 
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Solar Eclipse said:
If I have [tex]\varpi[/tex]d[tex]\varpi[/tex]=[tex]\alpha[/tex]d[tex]\theta[/tex] and then I take the integral will it be ([tex]\varpi[/tex]^2)/2 = [tex]\alpha\theta[/tex] or did I do it all wrong?

Hi Solar Eclipse! :smile:

(have an omega: ω and an alpha: α and a theta: θ :wink:)

Yes, that's fine, if α is a constant, of course (except you left out the "+ C"! :wink:) …

d(something) works the same no matter what the something is, and no matter whether you have d(something-else)s in the same equation. :smile:
 
awesome thank you for the help.
 

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