* Velocity is a vector: Velocity includes both speed (how fast an object is moving) and direction.
* Direction is changing: A car traveling in a circle is constantly changing its direction. Even if the car is moving at a constant speed, its direction of travel is continuously altering.
Think about it like this:
* Imagine a car driving around a roundabout. The car might be maintaining a steady speed of 20 mph.
* Even though the speed is constant, the car's direction is changing. It's constantly turning.
* Because velocity encompasses both speed and direction, the car's velocity is changing even though its speed is constant.
Key takeaway: The changing direction of the car traveling in a circle is the key reason why its velocity is constantly changing.
