{
  "annotation_id": "7563f9c6-e53c-496d-8b53-17ad00092e22",
  "date_created": "2026-03-02T18:00:50.487000Z",
  "date_modified": "2026-03-02T18:00:50.487000Z",
  "file_hash": "4f59c8b68883c8f8245150ef05c10375a37b8b986b4536cbbaf9d5b70b2a3b58",
  "private": false,
  "record": {
    "abstract": "The curve joining the points of maximum height in the parabolas of ideal\nprojectile motion is shown to be an ellipse. Some features of the motion are\nillustrated with the help of such ellipse.",
    "arxiv_id": "physics/0402020",
    "authors": [
      "J. L. Fern\u00e1ndez-Chapou",
      "A. L. Salas-Brito",
      "C. A. Vargas"
    ],
    "categories": [
      "physics.ed-ph",
      "physics.class-ph"
    ],
    "doi": "10.1119/1.1688786",
    "title": "An elliptic property of parabolic trajectories",
    "url": "https://arxiv.org/abs/physics/0402020"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "0764b1e6-6aa6-49e5-9c35-0c3a2bf63823",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}