My graphs were similar in shape to the actual graphs. The only differentiating factor was the size, which only occurred because I did not expect the skateboard to travel so far. The 21 inch ramp definitely had the highest maximum, which means it sent the skateboard the furthest. This was followed, predictably in order, by the 14 inch and 7 inch ramps.
The zeros of these graphs stand for when the skateboard was not moving. The skateboard could take longer or shorter to reach zero again based on the momentum each ramp gave it. The slope of the graph represents the rate at which the skateboard is traveling. Obviously, the steepest points of the parabolas were at the beginning, when the skateboard had the most momentum off of the ramp. The slopes fell fastest right after the maximum, and this was because gravity was pulling it down the second ramp: the driveway.
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November 2017
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