A student walks 20 m east, 40 m north, and then 20 m west. What are the student's distance traveled and displacement?

Total distance = 80 m

Total displacement = 40 m north

Explanation:

Total distance = 20 m + 40 m + 20 m

Total distance = 80 m

Total displacement = 20 m east - 20 m west + 40 m north

Total displacement = 40 m north

the answer is neither ball has a charge.

because if they were both positively charged, they will repel each other.

if they were positively and negatively charged, they will seek.