1. 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, symbolized as "N." It’s defined as the force required to accelerate a one-kilogram mass by one meter per second squared (1 N = 1 kg·m/s²). So, every time you push or pull something, you're essentially exerting a force measured in Newtons! For a real-world application, think about how this unit of force applies to everyday activities, like lifting weights or pushing a shopping cart. If you know your cart weighs around 15 kg and you give it a gentle push, you're applying about 15-30 Newtons of force. Understanding how to measure force can help you optimize your efforts whether you're exercising or just carrying groceries!