Question

All you can remember is to travel 5 miles then turn in a new direction (you are not sure in which direction) for another 4 miles. What is the minimum distance you must travel?

Answer 1

distance = 5+4 = 9 miles

(distance that a person travel)

displacement = 5-4 = 1miles

(displacement is the distance between the starting point and ending point)

distance≠displacement