Which of these is a derived unit in the metric system?

A derived unit in the metric system is a unit that is defined by a combination of base units. The Newton, being a unit of force, is derived from the base units of mass (kilograms), length (meters), and time (seconds). Specifically, one Newton is defined as the amount of force required to accelerate a one-kilogram mass by one meter per second squared (1 N = 1 kg·m/s²).

In contrast, the kilogram, meter, and second are all base units in the International System of Units (SI). The kilogram is the unit of mass, the meter is the unit of length, and the second is the unit of time. These base units serve as the foundational building blocks from which derived units like the Newton are created. Thus, the Newton stands out as a derived unit since it incorporates these fundamental concepts to express a more complex measurement.