* Velocity is a vector: Velocity has both magnitude (speed) and direction.
* Circular motion involves changing direction: An object moving in a circle constantly changes direction, even if its speed remains constant.
Therefore, even if an object moves at a constant speed in a circle, its velocity is constantly changing due to the changing direction. This means uniform velocity (constant speed and direction) is impossible in circular motion.
Key Concepts:
* Uniform velocity: Constant speed and constant direction.
* Circular motion: Movement along a circular path.
* Changing direction: A change in direction implies a change in velocity, even if speed remains constant.
Let me know if you have any other physics questions!
