Question
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.
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.
Answers
Henry
a. V = (3mi / 50s) * 3600s/h = 216mi/h.
b. 1. Yes.
b. 1. Yes.
John
no