Recent content by Janz

Starting from a Pillar, you run 200 m east (the +x-direction) at an average speed of 5.0 m/s, and then run 280 m west at an average speed of 4.0 m/s to a post. Calculate: (a) your average speed from pillar to post and (b) your average velocity from pillar to post. Hope someone can help me...