Jill sets out from her home to deliver flyers for her yard sale, traveling due east along her street lined with houses. Later she runs out of flyers and has to retrace her steps back to her house to get more. After picking up more flyers, she sets out again on the same path, continuing where she left off, and ends up 1.0 km from her house. At this point she turns back toward her house, heading south where she stops to rest. In which direction Jill is from her home? 1. In which direction is Jill from her home? 2. If Jill calculated her displacement as 3.1 Km, do you agree with it? 3. How much distance has she covered? 4. Why displacement of the Jill is zero when she goes back home?