answer
the answer is fact.
reason:
definition of 1 newton is the force required to accelerate 1 kilogram of mass at a rate of 1 meter per second squared 1 m/s^2 this means that if a force of 1 N is applied to an object with a mass of 1 kg it will accelerate at a rate of 1 m/s^2 the unit is derived from fundamental units in the SI (system international) system, which is the international standard for measuring physical quantities.