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Essay / Data Analysis - 3655
Data AnalysisExplanation[IMAGE]The experiment consisted of recording the results of a small toy car being allowed to roll down a ramp and then driving off the end of the ramp continuing all the way straight from the end of the ramp. desk.I measured the length of the ramp, the height of the ramp, and the distance it traveled horizontally. I also measured the mass of the car. It was necessary to measure these things so that calculations could be made later. All the information I collected can be seen in the diagram below. To achieve the results, I'm going to attach tape to the back of the car, so the car will pull the tape through the machine as it moves, and therefore create a point. on the piece of ticker tape every 0.2 seconds. When I analyze this, I obviously won't use all points, I'll probably use all points out of five. Predictions I think the car will gradually accelerate as it goes down the ramp, so gradually gain speed as it goes down. Then the car will accelerate even more as it comes down from the end of the ramp and the friction from the ramp will no longer be present. Although there will still be air resistance, the friction of the ramp will be gone and only the friction of the air and the ticker tape will be present. If we were to assume that there was no resistance, the acceleration of the car would reach about 9.8 ms-2 (although this value for gravity is not exact, gravity varies so much in different areas of the Earth that it is difficult to obtain an exact value, 9.8 is judged). be close enough). So the acceleration time graph will probably look like the one below: [IMAGE] You may be wondering why the acceleration will only reach 9.8, or so, as the car leaves the end of the ramp , after all, gravity was acting on the car before that time, wasn't it?