A shopper pushes a cart 40 m south down one aisle and then turns 90.0naught west and moves 10 m. He then makes another 90.0naught turn and moves 13 m.
(a) What is the largest possible displacement of the shopper?
m
naught counterclockwise from west

(b) What is the smallest possible displacement of the shopper?
m
naught counterclockwise from west