Question

A car travels 40 miles north in the first 40 minutes of the trip. The same car travels 30 miles west in the next 30 minutes of the trip. What can be said about the motion of the car?

A. The car is traveling at a constant speed
B. The car is accelerating at a constant rate
C. The car is moving ar a constant velocity
D. The car is decreasing its speed

Answer 1

Answer:

A. The car is traveling at a constant speed

Explanation:

When the car was moving north, it was moving 40 miles in 40 minutes (rate is 1 mile per minute). The rate is the same for when the car was travelling west (rate is 1 mile per minute), therefore, the car was travelling at a constant speed.