Assertion: proper acceleration | /r/CapableOf | yield the object's four-acceleration
Facets:
value: in an inertial frame
type: LOCATION
Source sentences:
text: In an inertial frame in which the object is momentarily at rest, the proper acceleration 3-vector, combined with a zero time-component, yields the object's four-acceleration, which makes proper-acceleration's magnitude Lorentz-invariant.