"equation of motion" meaning in English

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  "lang_code": "en",
  "pos": "noun",
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      "glosses": [
        "An equation that describes the behavior of a physical system in terms of its motion as a function of time."
      ],
      "id": "en-equation_of_motion-en-noun-TNI2-eqC",
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          "physics",
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      "raw_glosses": [
        "(physics) An equation that describes the behavior of a physical system in terms of its motion as a function of time."
      ],
      "topics": [
        "natural-sciences",
        "physical-sciences",
        "physics"
      ],
      "wikipedia": [
        "Equations of motion"
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  "word": "equation of motion"
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  "lang_code": "en",
  "pos": "noun",
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        "An equation that describes the behavior of a physical system in terms of its motion as a function of time."
      ],
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          "physics",
          "physics"
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        "(physics) An equation that describes the behavior of a physical system in terms of its motion as a function of time."
      ],
      "topics": [
        "natural-sciences",
        "physical-sciences",
        "physics"
      ],
      "wikipedia": [
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