Here's a breakdown:
1. Displacement:
- It's the straight-line distance between the object's starting and ending points, regardless of the actual path taken.
- It has both magnitude (size) and direction.
2. Time Interval:
- The duration over which the displacement occurs.
3. Formula:
Average Velocity = (Total Displacement) / (Total Time)
4. Units:
- The standard unit for velocity is meters per second (m/s).
Key Points:
* Direction matters: Average velocity takes into account the direction of motion.
* Not the same as average speed: Average speed considers the total distance traveled, not just the displacement.
* Can be zero: If the object ends up at the same position it started, the displacement is zero, and so is the average velocity.
Example:
Imagine a car traveling 10 kilometers east, then 5 kilometers west. The total distance traveled is 15 kilometers. However, the displacement is only 5 kilometers east (because the car ended up 5 kilometers east of its starting point). If this journey took 2 hours, the:
* Average speed would be 15 kilometers / 2 hours = 7.5 kilometers per hour.
* Average velocity would be 5 kilometers east / 2 hours = 2.5 kilometers per hour east.
Let me know if you'd like to explore any other related concepts!
