A shopper pushes a cart 50 m south down one aisle and then turns 90.0° west and moves 28 m. He then makes another 90.0° turn and moves 11 m.
(a) What is the largest possible displacement of the shopper? 1 m 2° counterclockwise from west
(b) What is the smallest possible displacement of the shopper? 3 m 4° counterclockwise from west