"Rotational Mass" denotes the inertia of a body with respect to angular acceleration. It is usually measured in kg*m^2.
Applicable units are those of quantitykind:RotationalMass
https://en.wikipedia.org/wiki/Moment_of_inertia
"Rotational Mass" denotes the inertia of a body with respect to angular acceleration. It is usually measured in kg*m^2.