Kinetic Energy Calculator
Kinetic energy is the energy an object possesses due to its motion: KE = ½mv², where m is mass in kilograms and v is velocity in meters per second.
Result
Kinetic Energy Formula
| Quantity | Formula | SI Unit |
|---|---|---|
| Kinetic Energy | KE = ½mv² | Joule (J = kg⋅m²/s²) |
| Mass | m = 2KE / v² | Kilogram (kg) |
| Velocity | v = √(2KE / m) | m/s |
Energy unit conversions: 1 kJ = 1,000 J · 1 Wh = 3,600 J · 1 cal = 4.184 J · 1 BTU ≈ 1,055 J · 1 eV ≈ 1.602×10−19 J
References & Methodology
- Halliday, Resnick & Krane — Fundamentals of Physics (10th ed., Wiley) — Standard undergraduate mechanics text; work-energy theorem and kinetic energy derivation from Newton's second law.
- NIST Special Publication 811 — Guide for the Use of the International System of Units (SI) — Authoritative unit definitions for mass (kg), velocity (m/s), and energy (J).
- Serway, R.A. & Jewett, J.W. — Physics for Scientists and Engineers (9th ed., Cengage) — Reference for energy conservation, work-energy theorem applications, and unit analysis.