A Newton (N) is the unit of force in the International System of Units (SI). It's defined as the force required to accelerate a mass of one kilogram at a rate of one meter per second squared.

In terms of units of mass and acceleration:

* 1 Newton (N) = 1 kilogram (kg) * 1 meter per second squared (m/s²)

This means:

* Mass (kg): The amount of matter in an object.

* Acceleration (m/s²): The rate of change of velocity over time.

So, a force of one Newton will cause a one-kilogram object to accelerate at one meter per second squared.