Velocity is the displacement of an object over the amount of time. It is not the same as speed. If an object travels 4 miles forward and then 4 miles back all in one hour, its speed is 8 mph. However, displacement is the difference between the final position and the initial position. So in this case, the average velocity would be 0 because its final and initial positions were the same.
<span>Aldebaran is cooler than the sun but has a larger diameter than the Sun.</span>
False, Most Americans live in large cities
Velocity can change when there is a change in direction and speed.