Use the data below to create a position vs time scatter plot using Excel. The plot should include an appropriate fit, and the fit coefficients should be displayed to four decimal places. Plots should always have appropriate axis labels and titles. Location of Location of PG #1 on PG #2 on Track (cm) || Track (cm) Distance between PGs (m) Average time of three trials between PG #1 and PG #2 (s) 20 30 0.1069 20 40 0.1876 20 50 0.2575 20 60 0.3172 20 70 0.3730 20 80 0.4224 20 90 0.4704 D Select all of the choices that are dependent on starting the cart from rest from the exact same position for every trial and keeping the position of the first photogate constant.
Select all that apply
A) Ensuring the B coefficient of the quadratic fit is constant.
B) Conveniently establishing the position of the 1st photogate as position equal to zero with a corresponding time of zero.
C) Maintaining a constant acceleration.
D) Maintaining a velocity that is repeatable as the cart reaches the 1st photogate.