A newton (N) is the unit of force in the International System of Units (SI). It is defined as the amount of force required to accelerate a one-kilogram mass by one meter per second squared. This means that if you push an object with a force of one newton, it will speed up by one meter per second for every second that the force is applied. The concept of newtons is named after Sir Isaac Newton, a prominent physicist and mathematician known for his laws of motion. These laws describe how objects move and interact with forces, laying the foundation for classical mechanics and helping us understand the physical world.