1. Demo 4: Sketch position vs time and velocity vs time graphs for when Moving Man: walks steadily towards the tree for 6 seconds, then stands still for 6 seconds, and then towards the house twice as fast as before for 6 seconds. Do yours as dashed line, compare with team members then make solid line based on group. + 0 - Position time Velocity + 0 - time 5 s10 s20 s15 s

2. Each group will be assigned a graph. Draw a motion map for the position vs. time graph. Explain any discrepancies that exist between the position and velocity graphs. Draw a motion map for the velocity vs. time graph.

3. Velocity + 0 - time + 0 - Position time 5 s10 s20 s15 s Velocity + 0 - time + 0 - Position time 5 s10 s20 s15 s Velocity + 0 - time + 0 - Position time 5 s10 s20 s15 s AB C Velocity + 0 - time + 0 - Position time 5 s10 s20 s15 s D

4. Demo 4: Sketch position vs time and velocity vs time graphs for when Moving Man: walks steadily towards the tree for 6 seconds, then stands still for 6 seconds, and then towards the house twice as fast as before. Do yours as dashed line, compare with team members then make solid line based on group. Velocity + 0 - time + 0 - Position time 5 s10 s20 s15 s D

5. Velocity + 0 - time + 0 - Position time 5 s10 s20 s15 s D

6. 10 -10 0 meters -10 10 0 meters Sketch graphs for Moving Man walks from the house to the tree: + 0 - Position time Velocity + 0 - time 5 s10 s20 s15 s + 0 - Position time Velocity + 0 - time 5 s10 s20 s15 s Choose to define positive direction as towards house. Choose to define positive direction as towards tree.

7. a.The position vs time graphs are different; the velocity vs. time graphs are the same. b.Both the position vs. time and velocity vs. time graphs are different. c.Both the position vs. time and velocity vs. time graphs are the same. d.The position vs time graphs are the same. The velocity vs. time graphs are different. e.I can’t make sense of these graphs. How do the graphs in these 2 cases compare? case a. positive towards house. case b. positive towards tree.

8. 10 -10 0 meters -10 10 0 meters Sketch graphs for Moving Man walks from the house to the tree: Choose to define positive direction as towards house. Choose to define positive direction as towards tree.

9. 10 -10 0 meters -10 10 0 meters Sketch graphs for Moving Man walks from the house to the tree: + 0 - Position time Velocity + 0 - time 5 s10 s20 s15 s + 0 - Position time Velocity + 0 - time 5 s10 s20 s15 s Choose to define positive direction as towards house. Choose to define positive direction as towards tree. notice slopes and velocities

10. How many times does the man’s speed go to zero? a.Never b.Once c.Twice d.Three times e.Four times

11. Steve is pacing back and forth in lecture. He starts at x =+10 (measured in dm from the edge of the bench), moves right to x=+30, moves back left to +20, then finally moves right to +50, as shown. What is the distance travelled, and the displacement? A: +40, and +40 (dm) B: +60, and +40 (dm) C: +40, and +60 (dm) D: +60, and +60 (dm) E: Something else, none of the above.

16. A person initially at point 3 on the x-axis stays there for a while and then strolls along the x-axis to point 1, stays there for a bit and then runs to point 2 and remains there.