The quadratic-drag AI video yields a fitted drag coefficient (CD ≈ 3.18) within the literature range reported for skydivers¶
Claim · All claims
Evidence · 1 study · designr2·q2
Currency · newest study 2026 · not yet checked against its sources · not reviewed by a person · recheck by 2029: tool and model accuracy changes quickly
Subclaims¶
Reading the evidence codes
q is the design tier, i the impact, n the sample, and the kind with its r
the rigour judged within that kind: what each code means.
This claim: no standardized effect is recorded in observations/ for it yet, so no benchmark reading is possible.
q2 i? Fitting the skydiver trajectory gave p2 = 1.2247 m⁻¹, from which b ≈ 97.98 kg/m and CD ≈ 3.18 were recovered, falling within the reported range CD ≈ 1.5–3.5. → Laura B. Alvarado-Cruz 2026
Evidence¶
Laura B. Alvarado-Cruz 2026¶
Laura B. Alvarado-Cruz, Josep Ll. Suñer, Pedro Yuste, Juan C. Castro-Palacio, Juan A. Monsoriu, and Francisco M. Muñoz-Pérez. (2026). From Prompts to Physical Laws: A Generative AI Workflow for Engineering Physics Education. https://arxiv.org/abs/2609.19400 doi:10.48550/arxiv.2609.19400
q2 · i? · design · r2
Parameter-interpretation analysis of Model 3 (quadratic drag) in the Results section. The logarithmic x(t) fit (p1 = 2.4318 m/s, p2 = 1.2247 m⁻¹, R² = 0.9953) yielded CD ≈ 3.18, which "falls within the rangeC D≈1.5–3.5 reported in the literature for skydivers".
"This falls within the rangeC D≈1.5–3.5 reported in the literature for skydivers [35, 36], supporting the physical plausibility of the AI-generated trajectory."
Discussion¶
Related Claims¶
- Kinematic trajectories extracted from AI-generated videos agree strongly with analytical resistive-force models, with coefficients of determination exceeding R² > 0.99 across three regimes — a broader claim this one bears on
- The linear-drag AI video yields a fitted glycerin viscosity (≈ 0.234 Pa·s) consistent with an aqueous glycerin solution of about 85% by weight
- The constant-friction AI video yields a fitted friction coefficient (µ ≈ 0.169) consistent with literature values for wood on smooth or waxed surfaces
Page metadata
| Field | Value |
|---|---|
type |
claim |
id |
ai-video-quadratic-drag-recovers-plausible-drag-coefficient |
title |
The quadratic-drag AI video yields a fitted drag coefficient (CD ≈ 3.18) within the literature range reported for skydivers |
description |
The quadratic-drag AI video yields a fitted drag coefficient (CD ≈ 3.18) within the literature range reported for skydivers |
status |
review |
evidence_strength |
moderate |
newest_evidence |
2026 |
recheck_by |
2029 |
generated |
by process:wiki-ingest on 2026-10-10 |
trust |
unverified — no one has confirmed this page's content |
sources |
1 — laura-b-alvarado-cruz-2026 |
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