Rolling Without Slipping Solver implementation

Binding contract

This record describes what an executable surface must bind and validate. It does not claim that a public calculator, package, or production route is deployed.

Record owner

Guth Instruments

Lifecycle

verified-clean

Evidence ID

t6-037

Effect

Computation or source lookup only

Input and validation requirements

The specification defines only four recognized shapes and gives no behavior for an unrecognized shape. Without explicit validation, an unknown shape produces an undefined inertia-ratio lookup and therefore an undefined acceleration; the solver must reject it.

Required corrections

No binding erratum is attached to this unique-name record. Implementers must still preserve the declared units, domain, and failure behavior.

Inspectable interface fixture

The sample below is evidence for interface and validation tests, not a production implementation.

{
  "inputs": {
    "shape": "solid sphere",
    "angle": 30,
    "angle_unit": "degrees",
    "g": 9.80665
  },
  "expected_outputs": {
    "acceleration_m_per_s2": 3.502375
  },
  "working": "k=I/(mR^2)=2/5=0.4. Convert angle: sin(30 degrees)=0.5. Denominator=1+0.4=1.4. Numerator=g sin(theta)=9.80665*0.5=4.903325. Therefore a=4.903325/1.4=3.502375 m/s^2."
}

Other records

Sources and evidence

These pointers bind the page to evidence. They do not grant authority or collapse verification into deployment.

• VERIFIED_LEDGER.json
• evidence-tranche6/tranche6-results.json