Is the kinetic energy of circular motion linear velocity or angular velocity

Is the kinetic energy of circular motion linear velocity or angular velocity

All of the following parts are played by utagawam
There is a formula for kinetic energy
Method 1
Ek＝（1/2）m×v²
The units are:
J (energy standard unit joule) = kg (mass international standard unit kilogram) × M / S (velocity standard unit meter per second)
So we know that we should use linear velocity
The unit of angular velocity is (rad / s), and the Chinese name of the unit is ({arc} degrees per second)
It is different from the unit of V in the kinetic energy formula, so linear velocity is used
Method 2
Deform the above formula
EK = [(1 / 2) m × (ω × R) & sup2;] = [key points: (1 / 2) m × R & sup2; × ω & sup2;]
The units are:
J (energy standard unit joule) = kg (mass international standard unit kilogram) × m (length international standard unit meter) × rad / S ({arc} degrees per second)
To sum up, the application of that formula depends on the condition, and then substitute it,
Adopted by watchtower owner