{
  "annotation_id": "b15572e9-f06b-4617-b89f-5a9ceceb0611",
  "date_created": "2026-03-02T18:01:06.673000Z",
  "date_modified": "2026-03-02T18:01:06.673000Z",
  "file_hash": "ef1604a551d5329cc0d9baa3c92795cd6bd9def96177562d7f68c7b536f3c228",
  "private": false,
  "record": {
    "abstract": "We discuss the classical motion of a spring of arbitrary mass coupled to two\narbitrary massive blocks attached at its ends. A general approach to the\nproblem is presented and some general results are obtained. Examples for which\na simple elastic function can be inferred are discussed and the normal modes\nand normal frequencies obtained. An approximation procedure to the evaluation\nof the normel frequencies in the case of uniform elastic function and mass\ndensity is also discussed.",
    "arxiv_id": "physics/0603244",
    "authors": [
      "F C Santos",
      "Y A Coutinho",
      "L Ribeiro-Pinto",
      "A C Tort"
    ],
    "categories": [
      "physics.class-ph"
    ],
    "doi": "10.1088/0143-0807/27/5/003",
    "journal_ref": "Eur. J. Phys. 27 1037-1051 (2006)",
    "title": "The motion of two masses coupled to a massive spring",
    "url": "https://arxiv.org/abs/physics/0603244"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "07299ad6-ccee-4741-b0fe-8e6859f35a4e",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}