The metric unit of force is the

A. newton.

B. kilogram.

C. gram.

D. nanometer.

(The answer is A. newton) For example, the SI unit of force, the newton, is defined to be the force that accelerates a mass of one kilogram at the rate of one meter per second per second. This means the newton is equal to one kilogram meter per second squared, so the algebraic relationship is N = kg.