Car A tracker graph: 

Car B tracker graph:

Please answer the following questions:

1. Describe the position of each car as a function of time x(t)=...

2. Start cars 2,000 meters apart and facing each other. If kinematics is a reasonable way to describe the motion of the cars, where will they meet? Follow the steps below. 

Use the x(t) functions describing the motion of the two cars to predict where they will meet. While you are making the prediction, think of the assumptions that you are making. One of these assumptions is that the cars move at constant speed right from the moment they are released. Will this assumption affect the prediction of where they will meet? If yes, then how?

I answered #2; i just need to know if i answered right.
My answer for #2: 

1. One fast and one slow; two meters apart.
   
   Car A= 137.4 t - (1)
   Car B= x-200= - 647.36 - (2)
   x= -647.3 t + 200
   
   -647.3 t+ 200= 137.4 t

T (647.3+ 137.4)= 200 

t=200/784.7= 0.255 

x= 35.02 or 0.35 m APART from car A and 1.65 m APART from car B. 

PLEASE HELP 

Transcribed Image Text:

mass_A Measure Analyze Data Builder... Refresh Help markers lines style axis x 10 1.1 1.0 horiz vert 0.9 row t 0 3.333E-2 1 6.670E-2 -3.737 -3.765 -3.766 -3.751 0.8 0.7 0.133 3 4 0.167 0.6 -3.846 -3.810 -3.806 -3.776 0.200 0.5 0.234 0.267 0.4 0.300 0.334 7 8 9 10 0.3 -3.791 0.367 -3.765 0.2 0.400 0.434 -3.753 -3.739 -3.739 0.1 11 12 13 14 15 16 17 0.467 0.500 -3.728 -3.733 -3.710 -3.717 -3.706 -3.733 -3.710 -3.728 -3.738 1 2 3 4 6 7 8 9. 0.534 0.567 0.600 0.634 0.667 0.700 Fit Name: Line Parameter Value Fit Builder A 1.374E2 18 Fit Equation: x = A*t + B B |-2.719E2 19 20 21 0.734 V Autofit rms dev: 1.135E2 0.767 Press shift-S key to toggle slope line length, shift-space key to toggle freeze. Press control key to toggle measoringdibebfit mass_A Measure Analyze Data Builder... Refresh Help markers lines style axis x 10 1.1 1.0 horiz vert 0.9 row t 0 3.333E-2 1 6.670E-2 -3.737 -3.765 -3.766 -3.751 0.8 0.7 0.133 3 4 0.167 0.6 -3.846 -3.810 -3.806 -3.776 0.200 0.5 0.234 0.267 0.4 0.300 0.334 7 8 9 10 0.3 -3.791 0.367 -3.765 0.2 0.400 0.434 -3.753 -3.739 -3.739 0.1 11 12 13 14 15 16 17 0.467 0.500 -3.728 -3.733 -3.710 -3.717 -3.706 -3.733 -3.710 -3.728 -3.738 1 2 3 4 6 7 8 9. 0.534 0.567 0.600 0.634 0.667 0.700 Fit Name: Line Parameter Value Fit Builder A 1.374E2 18 Fit Equation: x = A*t + B B |-2.719E2 19 20 21 0.734 V Autofit rms dev: 1.135E2 0.767 Press shift-S key to toggle slope line length, shift-space key to toggle freeze. Press control key to toggle measoringdibebfit