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Audio Video Interleaved Video  |  2012-12-18  |  10.0 MB  |  700x500  |  4fps  |  2 minutes, 11 seconds
Transcription: In this example, we're calculating relative velocity. We start with a situation in which we have two cars both traveling north. The car that is in front is traveling at 55 miles per hour north, and the car that's behind is traveling at 45 miles per hour north. What happens when these cars travel? Well, think about it. The car that's behind is traveling slower. The car that's ahead is traveling faster. So as time goes on, the car that's ahead will get farther and farther away from the car that is behind. This won't happen too quickly, however, because the car that's behind is traveling in the s ...