which scenario best describes motion?\n a toy train in position 4 on a number line\n a race track that is…

which scenario best describes motion?\n a toy train in position 4 on a number line\n a race track that is 100 meters long\n a ball rolling from point a to point b\n a student living 150 miles from chicago
Answer
Brief Explanations:
Motion is a change in position over time. A ball rolling from point A to point B shows a change in position, which is motion. The toy - train in a fixed position, the length of a race - track, and the distance of a student from a city do not represent motion.
Answer:
a ball rolling from point A to point B