Before diving into calculations, it’s essential to understand the different types of friction forces. Generally, we classify friction into two categories – static and kinetic (or dynamic) friction.

Static friction is the force that opposes the initiation of motion between two surfaces in contact. This force acts tangentially along the surfaces and prevents objects from sliding over one another ...

Sometimes you think you have a complete understanding of something and then BOOM—a simple problem throws everything out the window. Let's consider a very basic physics problem involving pushing a ...