realworld_subset/NewtonsFirstLaw/AtRest/10/formula_info.json

{
  "correct_letter": "A",
  "correct_formula": "ΣF_ext = 0",
  "annotation": "Environment: g=9.81, F_drag=!=0",
  "choices": [
    "ΣF_ext = 0",
    "W = ΔE_k = (1/2)·m·v_t² - (1/2)·m·v_0²",
    "τ_net = Σ(F_i·r_i·sinθ_i) · e^(-μ·t)",
    "U = -G·m_1·m_2 / r"
  ],
  "correct_index": 0,
  "physics_type": "AtRest",
  "seed": "AtRest|NewtonsFirstLaw/AtRest/10",
  "is_realworld": true,
  "dropped_wrong_formulas": [
    "F_drag = (1/2)·C_d·ρ·A·v²"
  ]
}