{
  "annotation_id": "836c82ee-80b1-4b32-a997-e25dbbe02705",
  "date_created": "2026-03-02T18:00:32.037000Z",
  "date_modified": "2026-03-02T18:00:32.037000Z",
  "file_hash": "93de328648a0d4c1a9634cc1aeefe9df1eb45339276b5dc3571ef36f77acef3a",
  "private": false,
  "record": {
    "abstract": "We analyse a mechanical system in two-dimensional relative motion with\nfriction. Although the system is simple, the peculiar interplay between two\nkinetic friction forces and gravity leads to the wide range of admissible\nsolutions exceeding most intuitive expectations. In particular, the strong\nqualitative dependence between behaviour of the system, boundary conditions and\nparameters involved in its description is emphasised. The problem is intended\nto be discussed in theoretical framework and might be of interest for physics\nand mechanics students as well as for physics teachers.",
    "arxiv_id": "physics/0006014",
    "authors": [
      "Dariusz Grech",
      "Zygmunt Mazur"
    ],
    "categories": [
      "physics.ed-ph",
      "physics.gen-ph"
    ],
    "title": "The problem of friction in two-dimensional relative motion",
    "url": "https://arxiv.org/abs/physics/0006014"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "3290b4ec-dedf-41ea-99b9-6f2bd89e72ae",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}