Kinetic Energy Calculator

Inspectable records

Ledger state

The current ledger marks this instrument verified clean within the source-bound verification corpus.

Area

Physics — Kinematics/Projectiles/Orbits, Forces/Energy/Momentum, Rotational Dynamics, Gravitation, Oscillations/Waves, Optics, E&M Fields, Relativity, Quantum, Statistical Thermo

Tranche

tranche-4

Evidence ID

t4-143

Ledger rows

1

No ledger note is attached.

Review findings

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.

Formula and scope findings

• 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.

Unit assumptions

• 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.

Boundary hardening

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.

Errata and corrections

No applied erratum is attached to this unique-name record.

Inspectable example

4 review vectors are recorded. One source-bound sample is shown below.

{
  "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"
}

Related workflows

Sources and evidence

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

• VERIFIED_LEDGER.json · VERIFIED_CLEAN
• evidence-tranche4/tranche4-results.json
• BOUNDARY_HAZARD_CATALOG.json