What is the definition of N in terms of weight?

 

                                                  Portrait of "Isaac Newton" (1643 - 1727).

“N” is the symbol or unit of force in “International System of Units”. N stand for “Newton”.  When one Kilogram of mass is accelerated by one “N” force at one meter per second squared.

 

F is the force in Newton, m is the mass in kilograms, “a” is the acceleration in meters per Second Square.

If a mass of 1 kilogram is lying on earth and a force applied by a source for the acceleration of one meter at the rate of per second squared. (It is 9.8 meter per second squire).