* Velocity is a vector quantity: This means it has both magnitude (speed) and direction.
* Direction is key: Positive and negative signs in velocity indicate direction relative to a chosen reference frame.
Example:
* Imagine a car moving to the right (east). If we choose right as the positive direction, the car's velocity is positive.
* If the car moves to the left (west), its velocity is negative because it's moving in the opposite direction of our chosen positive direction.
Important Note:
* The choice of positive and negative directions is arbitrary. You could choose left as positive and right as negative. The key is to be consistent throughout your calculations.
Let me know if you'd like more examples or have any further questions!
