Source: https://guthlabs.ai/docs/instruments/kinetic-energy-calculator/mechanism/

instrument mechanism / verified-clean

# Kinetic Energy Calculator mechanism

The inspectable method record for Kinetic Energy Calculator, kept separate from implementation and qualification.

Status: **VERIFIED_CLEAN**Lifecycle: **verified-clean**

## Model scope

The formula is valid under classical, nonrelativistic assumptions. The verdict is NEEDS_REVIEW because the speed regime and input units are unspecified. honest_label='n/a' does not disclose the classical approximation or required SI units; an honest label should identify this as a classical/nonrelativistic translational kinetic-energy calculator.

- KE=½mv² is the correct classical formula for translational kinetic energy when mass is constant and speed is nonrelativistic.

- The spec does not state the nonrelativistic applicability limit; at speeds approaching the speed of light, relativistic kinetic energy must be used instead.

- The spec does not constrain mass to nonnegative values or clarify whether velocity may be signed; velocity may be signed because it is squared, but mass must be nonnegative.

## Units and conventions

- Mass is in kilograms (kg).

- Velocity is in metres per second (m/s); the output is in joules (J).

- If supplied in other units, mass and velocity must be converted before applying the formula: 1 g=0.001 kg and 1 km/h=5/18 m/s.

## Inspectable vector

One of 4 source-bound review vectors:

````
{
  "inputs": {
    "mass_kg": 2,
    "velocity_m_per_s": 3
  },
  "expected_outputs": {
    "KE_J": 9
  },
  "working": "KE=½mv²=½×2 kg×(3 m/s)²=1×9 kg·m²/s²=9 J"
}
````

## Failure boundary

**BREAK_CLAIMED** · SELF_FLAGGED

The plain JavaScript arithmetic overflows for mass = 10^308 and velocity = 10^308, producing Infinity instead of a finite representable result. The unspecified velocity unit also permits materially different interpretations.

## Other records

[01**Overview**](<https://guthlabs.ai/docs/instruments/kinetic-energy-calculator/>)[03**Implementation**](<https://guthlabs.ai/docs/instruments/kinetic-energy-calculator/implementation/>)[04**Qualification**](<https://guthlabs.ai/docs/instruments/kinetic-energy-calculator/qualification/>)

## 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`

- `BOUNDARY_HAZARD_CATALOG.json`