Equations
Rotational kinetic energy
Energy · id rotational_kinetic_energy
K = \frac{1}{2} I \omega^2
| Symbol | Quantity | Unit | Meaning | Usual range |
|---|---|---|---|---|
K | rotational kinetic energy | J | Kinetic energy of the rotation | 0 to 1e+12 |
I | moment of inertia | kg*m^2 | Rotational inertia about the axis | 1e-06 to 1e+09 |
omega | angular velocity | rad/s | Rate of rotation | 0 to 10000 |
Assumptions
- Rigid body rotating about a fixed axis
Valid when
- No extra conditions.
Found by
Questions with these words retrieve this equation: rotation, rotational kinetic energy, flywheel, spinning, energy, angular velocity.
Source
OpenStax University Physics Volume 1, Chapter 10 (reference; entry written by the project). License: MIT. Entry confidence: 0.99.