VmodExtras/src/main/resources/data/vmodaddon/vs_mass/all.json

[
  {
    "block": "vmodaddon:ship_void",
    "mass": 0.0,
    "friction": 0.0
  },
  {
    "block": "vmodaddon:track_b",
    "mass": 40.0,
    "friction": 0.0
  }
]