Journal Entry (11)

Today we tested the car again and it works very well. We figured out the exact angle we need to have the wheels at in order for it to go around the track. It goes around the track 1 ¹/₄ times. My hypothesis on how far the car will go on race day is about 1 lap because the spring is wearing out as the car used to go to laps. As we are obviously going to test the car in the future, the spring will wear out even more and the car will only go around the track once.

We collected data while testing today by writing down the time and distance the car went.

velocity initial (v_i)= 1.833333...m/s

velocity final (v_f)= 3.38m/s

acceleration= .1m/s²

mass= 77.5g

force= 7.74N

^^^Kiersten's Force Diagram of our car