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In classical mechanics, the two-body problem is used to calculate and predict the motion of two massive bodies that are orbiting each other in space. The problem assumes that the two bodies are perfect spheres that never collide with one another and that all external forces are negligible compared to the force of interaction between the two bodies.
Results for prominent cases, Reduction to two independent, one-body problems & Two-body motion is planar
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problem two two-body force mass displaystyle one one-body center mathbf problems motion vector equation classical object system forces mechanics objects
| Subject | Predicate | Object | Confidence | Src |
|---|---|---|---|---|
| Two-body problem | is a | gravitational case | 0.90 | text |
| satellites | instance of | of objects | 0.80 | text |
| planets | instance of | of objects | 0.80 | text |
| and stars | instance of | of objects | 0.80 | text |
| Two-body problem | related to External links | Two-body | 0.60 | section |
| Two-body problem | related to External links | Eric Weisstein's World | 0.60 | section |
| Two-body problem | related to External links | Physics | 0.60 | section |
| Two-body problem | related to Gravitation and other inverse-square examples | The | 0.60 | section |
| Two-body problem | related to Gravitation and other inverse-square examples | Under | 0.60 | section |
| Two-body problem | related to Gravitation and other inverse-square examples | If | 0.60 | section |
| Two-body problem | related to Inapplicability to subatomic systems | Although | 0.60 | section |
| Two-body problem | related to Inapplicability to subatomic systems | Most | 0.60 | section |
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