15th Journal Entry

9-14-10

 Today was backwards day. Instaed of propelling our car one way down the track, we went the other way. You may think that this would mean that our car would go a negative distance, but as the following graph will show, it is still travelling and therefore does move a positive distance: 

By using absolute value, you still get a positive difference or distance. This also works for one ofe newton's laws, F=ma. Because you cannot have negative force, absolute value is used for force. While most of the work today was on the computerand on the blueprints, we did run some tests on the round track. However, we did not get very much data because another angry group wanted the track right then. We then took the car to our own table to test the turning system. We tested three different ways to launch the caon race day: straight, turned right, or turned left. This test we could not complete either, because it was time to clean up. However, we do know that the straight one and the right-faced one went about 1 meter.

-Tanner