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Central Conservative Forces and Orbits beyond Conic Sections

Central Conservative Forces and Orbits beyond Conic Sections
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摘要 The well-known characteristics of orbitals of classic central conservative force stems from the forces in proportion to the inverse square distance. In this article the authors extend the scope of the interest to central forces that are in proportion to algebraic integer powers of distance. Specifically, we investigate cases where the power of the distance varies between -2 to 4. Within this range the classic conic sections are associates with n = -2. The equation of motion leading to the orbitals only for n = I and -2 are analytically solvable. The remaining cases are analytically unsolvable nonlinear differential equations. Utilizing Computer Algebra System (CAS) we solve these equations numerically. For certain values of n numeric solutions are conducive to unseen trajectories.
出处 《Journal of Mathematics and System Science》 2014年第8期579-585,共7页 数学和系统科学(英文版)
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  • 1E.g. "Fundamentals of Physics", 9th Ed. Extended by David Halliday, Robert Resnick and Jeral Walker, published by John Wiley andSons 2011 .And websites e.g. http://www.physicsclassroom.com/class/circles/u613c.cfm.
  • 2E.g. "Classical Dynamics of Particles and Systems", by S Thornton and J. Marion, 5th Ed., Cengage Learning (July 7, 2003), and "ClassicalMechanics" Goldstein, Safko and Poole, 3rd Ed. Addison-Wesley; 3 edition (June 25, 2001),.
  • 3Elliptic Harmonic Motion, e.g. http://farside.ph.utexas.edu/teaching/336k/newton/node28 .html.
  • 4Mathematica "A general computer software system and language intended formathematical and other applications", V9.0, Wolfram Research, 2013.

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