Understanding the Concepts
* Average Velocity: This is the overall displacement of the car divided by the time taken. Since the car completes a lap and returns to its starting point, its displacement is zero. Therefore, its average velocity is zero.
* Average Speed: This is the total distance traveled divided by the time taken.
Calculations
1. Distance: The distance of one lap is the circumference of the circle:
Circumference = 2 * π * radius = 2 * π * 200 meters ≈ 1256.64 meters
2. Average Speed:
Average speed = Total distance / Time
Average speed = 1256.64 meters / 62.8 seconds ≈ 20 meters/second
Answer:
* The average velocity of the car is 0 meters/second.
* The average speed of the car is 20 meters/second.
