{
  "environment": {
    "air_resistance": "!=0",
    "gravity": 9.81
  },
  "ground": {
    "dynamic_friction": "TODO",
    "label": "Ground",
    "restitution": 0.5,
    "static_friction": "TODO"
  },
  "objects": [
    {
      "height": 0.77,
      "id": 1,
      "initial_velocity_u": 0,
      "initial_velocity_v": 0,
      "mass": 0.145,
      "name": "Baseball",
      "restitution": 0.55,
      "size": 0.07,
      "size_symbol": "d",
      "static": true
    },
    {
      "height": 0.77,
      "id": 2,
      "initial_velocity_u": -1.046819,
      "initial_velocity_v": 0,
      "mass": 0.06,
      "name": "TennisBall",
      "restitution": 0.75,
      "size": 0.07,
      "size_symbol": "d",
      "static": false
    }
  ],
  "render": {
    "axes_arrow_head_width": 20,
    "axes_arrow_length": 75,
    "axes_arrow_width": 8,
    "fontsize": 20,
    "margin_axes_range": [
      5,
      50
    ],
    "margin_env_range": [
      5,
      50
    ],
    "margin_ground_range": [
      5,
      50
    ],
    "velocity_arrow_head_width": 30,
    "velocity_arrow_length": 100,
    "velocity_arrow_width": 10
  },
  "task_type": "composition"
}