A girl scout has to sell cookies in her neighborhood one Saturday morning. After walking out her door, she initially walks 15 meters, East, at 1 m/sec to arrive at her first customer's house. It takes her 180 seconds to ring the doorbell, have someone answer the door, explain her project, record their order and document their payment. She then walks 17 meters, North, at 1 m/sec to her second customer's house where, once more, she takes 180 seconds to complete the sale. Next she walks 25 meters, West, at 0.5 m/sec, to arrive at her third customer's house at which she completes her sale in 180 seconds. To reach her 4th customer's house, she walks 16 meters, South, at 0.5 m/sec and completes her sale in 180 seconds. Realizing that she is running out of time, she jogs 18 meters, East at 1.5 m/sec, to her 5th customer's house, completes her sale in 180 seconds, and runs 16 meters, South, at 2 m/sec to her 6th and final house where after taking 180 seconds she barely makes her deadline as she finishes with her morning activities. In the following chart, supply the scout's travel times along with her x (E-W) and y (N-S) displacements for each step. |