MathLiveRotational kinetic energy
Gives the kinetic energy a rigid body has because it rotates about an axis, from its moment of inertia and angular velocity. It is used for spinning wheels, rotors, and any rigid body in rotational motion.
E_{\mathrm{r}} = \frac{1}{2} I \omega^2What the symbols mean
| rotational kinetic energy (J) | |
| moment of inertia about the rotation axis (kg\cdot m^2) | |
| angular velocity (rad/s) |
About this formula
- FieldPhysics
- TopicRotational dynamics
- LevelHigh school
- Also calledrotational energy, kinetic energy of rotating body, rotational kinetic energy formula, energy of rotation, half I omega squared, kinetic energy of a spinning object
- SourceWikidata Q2140940
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