Question

6. A car is driving in a large circle at a constant speed of 20 miles per hour. Is the car accelerating? How do you know?​

Answer 1

The car is NOT accelerating. An object cannot accelerate if it has a CONSTANT speed. Acceleration is the rate of change of velocity, meaning that it has to change speeds as it moves.

Answer 2

The car is not accelerating, because the car is driving at a constant speed of 20 miles per hour.