Friction is a force that opposes the motion of two surfaces in contact with each other. It plays an essential role in our daily lives, as it is responsible for providing grip, reducing wear and tear ...

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.

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 ...

In today's episode, Shini tells us about Static and Kinetic friction. Why is it hard to move a heavy bookcase across a carpeted floor? And why is it easier to keep it moving than it was to get it ...

As one gear turns, the other gear must also turn. Where the gears meet, the teeth must both move in the same direction. In the diagram, the teeth of both gears move upwards. This means that the gears ...