Question

1. The following table shows data taken from an experiment involving a ball, initially at rest, dropped straight down in air. The distance was measured using an ultrasonic ranger placed above the ball Time (s) t?(s) Distance from the detector (m) 0.515 0.562 0.705 0.945 Total displacement y(m) 0.000 0.100 0.200 0.300 Complete the t and displacement column (4 points) A. B. Plot y vs. t(8 points) C. Draw a best-fit straight line to the data. Calculate the slope of the graph with units. Show your work and the answer on the graph itself. (4 points) D. What physical quantity does the slope of the graph represent? (4 points)

Answer 1

unit of time =second

distance dispalcement 1 time detector time2 dispalcement 0.515 0.5 0.45 0.4 0.35 0.3 0.25 0.2 0.15 0.1 0.05 0.1 0.562 0.2 0.705 0.01 0.047 0.19 0.3 0.945 0.09 0.43 y-4.7806x-0 0.04 answer (b) and answer (a) S-ut+(1/2)at 2 where s is the displacemement u initial volocity ttime a acceleration if u-0 initial velcoity S (1/2)at slope of the graph is bascially (1/2)a-4.78 10 12 time 2 a-9.56 m/s 2 answer (d) Sheet1

displacement=meter