If a race car completes a 3 mi oval track
in 50 s, what is its average speed?
Did the car accelerate?
1. Yes, the speed changed.
2. No, the speed didn’t change.
3. Yes, the direction of the motion
changed.
a. V = (3mi / 50s) * 3600s/h = 216mi/h.
b. 1. Yes.
no
To find the average speed of the race car, you will need to divide the total distance it traveled by the time it took. In this case, the race car completed a 3-mile oval track in 50 seconds. So, to find the average speed, you divide the distance traveled (3 miles) by the time taken (50 seconds):
Average Speed = Distance / Time
Average Speed = 3 miles / 50 seconds
Now, divide 3 miles by 50 seconds to get the average speed of the race car.
Average Speed = 0.06 miles per second
Now, let's answer the second part of your question.
To determine whether the car accelerated or not, we need to assess if the speed of the car changed or if the direction of motion changed. According to the information provided, the problem does not mention any change in speed or direction. Therefore, the car did not accelerate (Option 2: No, the speed didn't change).