Lab Report One - decrease too much because we were...

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Lab Report One Group member: Wenjun Zhang, Andrew Feder, Rui Wang Date: 22, Jan,2010. 1:30-3:30 Answer to the conceptual questions: 1. The interstate speed limit apply to the instantaneous car velocity for the whole trip. 2. The average speed for the whole trip from Indy to Chicago is approximate 66.7mph. We observed from the lab that it is hard for us to keep velocity constant. Even though we tried a lot of times and do as best as we can, we still cannot maintain a constant velocity in a period of time. So we thought it is impossible for people to move at a constant velocity, it may be just a ideal situation. In addition, we found after a period of still, when we start to move, the velocity is always move too rapidly. Then when we realize we move too fast, we try to decrease our velocity, it was always happen that we
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Unformatted text preview: decrease too much because we were deceleration too much. We can use the relationship between distance, velocity and time to calculate the result from the raw data. We know that the average velocity is calculated by the whole distance divided by the time and the instantaneous velocity is at the certain time the ratio of change in distance divided by the change in time. The experimental error only effect a little bit on our results because we use the really small amount of number, but if we use large quantity of number, it will result a big different in the effect. However, due to the fact we have to round number during the calculation process, we still have some errors between the result and experiment....
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This note was uploaded on 04/23/2011 for the course PHYS 220 taught by Professor Chang during the Spring '09 term at Purdue University-West Lafayette.

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