So, what are forces? Well forces cause things to change, and a beautiful example of that is Newton's first law of motion. It says that things stay still or carry on moving at a constant speed in a ...

Newton's first law can also be ... travelling with non-uniform motion. This includes situations when the speed changes, the direction changes, or both change. For example, when a car accelerates ...

For nearly 300 years, Isaac Newton’s first law of motion has been one of the most fundamental principles in physics. But a ...