Understanding Velocity
* Velocity is a vector quantity, meaning it has both magnitude (speed) and direction.
* Speed is the rate at which something moves.
* Direction is the way something is moving (e.g., north, south, east, west).
Calculating Average Velocity
To find the average velocity over the entire journey, we need to consider both the distance traveled and the time taken:
1. Total Distance: The car travels -50 meters in the first 5 seconds and then another -50 meters in the next 10 seconds. The total distance is -50 meters + (-50 meters) = -100 meters. (The negative sign indicates the direction of the car, assuming it's moving backwards or in a negative direction).
2. Total Time: The total time for the journey is 5 seconds + 10 seconds = 15 seconds.
3. Average Velocity: Average Velocity = Total Distance / Total Time = -100 meters / 15 seconds = -6.67 m/s (approximately).
Important Note: The average velocity is -6.67 m/s. This means the car is moving at an average speed of 6.67 m/s in a negative direction (backward or opposite the direction of the positive axis).
Let me know if you need further clarification or have other questions!
