File size: 626 Bytes
85b7a6c | 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 | {
"correct_letter": "D",
"correct_formula": "y = h + x·tanθ - g·x² / (2·v_0²·cos²θ)",
"annotation": "Environment: g=9.81, F_drag=!=0\nGround: e=0.5\nPingPongBall: d = 0.04, e = 0.71, h = 0.92, v_0 = 1.51",
"choices": [
"x(t) = v_0·t·cosθ · (1 - g·t/v_0)",
"m·g·h + (1/2)·m·v_0² = constant",
"U = (1/2)·k·x²",
"y = h + x·tanθ - g·x² / (2·v_0²·cos²θ)"
],
"correct_index": 3,
"physics_type": "Projectile",
"seed": "Projectile|Gravity/Projectile/21",
"is_realworld": true,
"dropped_wrong_formulas": [
"F_drag = (1/2)·C_d·ρ·A·v² (A = π·(d/2)²)"
]
}
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