1. Motion in One Dimension

2. Displacement

3.  x = x f - x i

4. Average Velocity V avg =  x/  t v avg = (x f – x i )/(t f – t i )

5. Velocity has magnitude and direction (25 mph west) Speed has only magnitude (25 mph)

6. Finding Velocity Graphically Slope = rise / run =  y /  x V avg =  x /  t

7. position (m) time (s)

8. Acceleration the rate of change of velocity a avg =  v /  t

9. Since velocity has magnitude and direction and a avg =  v /  t acceleration has magnitude and direction

10. Finding Acceleration Graphically Slope = rise / run =  y /  x a avg =  v /  t

11. velocity (m/s) time (s)

12. Distance (m) photo over 2 s Red ball Displacement? Average velocity? Average acceleration?

13. with constant acceleration v avg =  x /  t = (v i + v f ) / 2  x = ½(v i + v f )  t