Rotational Kinetic Energy
The kinetic energy possessed by a body due to its rotation about an axis.
Governing formula
KE_rot = ½ I ω²
SI unit
J
In depth
Analogs linear KE = ½ m v², replacing mass m with moment of inertia I, and linear speed v with angular speed ω.
Examples in the real world
Energy stored in spinning energy-storage flywheels or spinning planets.