What is the unit of force in the International System of Units (SI)?

The unit of force in the International System of Units (SI) is the Newton. The Newton is defined as the amount of force required to accelerate a one-kilogram mass by one meter per second squared. This unit is named after Sir Isaac Newton, whose work in classical mechanics described how forces interact with objects to produce motion.

In contrast, a pound is a unit of force commonly used in the imperial system, and the kilogram is a unit of mass, not force. The Joule, on the other hand, is a unit of energy. Understanding the difference between these units highlights the significance of the Newton as the standard reference for measuring force in scientific contexts.