a girl lives 500 meters north of a store. she walked halfway there and realized she forgot her money. she went home, got her money, and walked to the store.
when she finally reached the store, what was the displacement and distance walked?

o distance = 500 m south; displacement = 1000 m

o distance = 500 m; displacement = 500 m south

o distance = 750 m; displacement = 0 m

o distance = 1000 m; displacement = 500 m south