Momentum Calculator 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

t4-179

Effect

Computation or source lookup only

Input and validation requirements

The plain-JavaScript arithmetic engine overflows for a valid finite input combination of mass = 10^308 kg and velocity = 10^308 m/s, producing Infinity instead of a finite representable result; the mathematical momentum is 10^616 kg·m/s.

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": {
    "mass": 2,
    "mass_unit": "kg",
    "velocity": [
      3,
      -4,
      0
    ],
    "velocity_unit": "m/s"
  },
  "expected_outputs": {
    "p": [
      6,
      -8,
      0
    ],
    "unit": "kg·m/s"
  },
  "working": "p=mv=2 kg×[3,-4,0] m/s=[2×3,2×(-4),2×0]=[6,-8,0] kg·m/s."
}

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-tranche4/tranche4-results.json