024 q02 sc130 • Name:

Rolling ball background rectangle major grid lines axes x-axis and y-axis linear regression line data points as rectangles B data points as diamonds C data points as circles A data points as triangles D text layers Rolling ball time versus distance plots for four rolls Time (s) Distance (cm) y-axis labels 0 200 400 600 800 1000 1200 1400 1600 1800 2000 x-axis labels 0 1 2 3 4 5 6 7 8 9 10

The graph shows the time versus distance data gathered for four different ball laboratory 02. The first four questions are matching. Use the letters A, B, C, and D at the end of the lines on the xy scattergraph.

  1. _____ Ball not moving: stationary.
  2. _____ Ball slowing down.
  3. _____ Ball moving at a constant non-zero speed.
  4. _____ Ball speeding up.
  5. ___________________ Determine the speed of ball D.
  6. ___________________ Determine the speed of ball A.
  7. ___________________ Determine the speed of ball B between 4 and 5 seconds.
  8. ___________________ Determine the speed of ball C between 7 and 10 seconds.
  9. A rolling ball cannot generate a vertical line on a time versus distance graph. Why?
  10. 024 RipStik Alley background rectangle major grid lines axes x-axis and y-axis linear regression line Linear regression equation manually placed y = 1.58 x + 0.5 data points as rectangles text layers RipStik Alley Time (s) Distance (m) y-axis labels 0 4 8 12 16 � 20 24 28 32 36 40 x-axis labels� 0 3 6 9 12 15 18 21 24 27 30
    ___________________ The graph on the above left was generated by a RipStik rider. The x-axis is time in seconds, the y-axis is the distance in meters. The equation of the line is y = 1.58x + 0.5. What is the speed of the RipStik (including units)?
  11. ___________________ The graph on the above right is taken from the ball rolling data gathered on Thursday. The x-axis is in seconds, the y-axis is in centimeters. What is the speed of the ball (including units)?
  12. ___________________ In the graph on the above right the actual data points form a slight curve. Why does the data form a slight curve, what is happening to the ball?
  13. ___________________ What is a typical normal walking speed, A) 1.1 m/s, B) 3.5 m/s, or C) 13.9 m/s?
  14. _________________ Calculate your speed if you walk 40 meters in 20 seconds
  15. _________________ At the walking speed calculated above, how long in seconds for you to walk the 1000 meters from the A101 classroom to Palikir Elementary School?

slope m= (y2−y1) (x2−x1)
d = ѵt
ѵ= Δd Δt