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Photo caption: This is a streetcar in New Orleans traveling back towards The Quarter on St. Charles Ave. I held the camera against the window sill, making sure to divide the image equally between the inside and the outside. Shot with a Nikon D700 at .8 sec @ f/20, ISO 400, Nikkor 18.0-35.0mm f/3.4-4.5 lens set at 23mm. This photo was submitted to National Geographic's 2012 Photo Contest (Places). Photographer Don Chamblee is 53 years old, and has enjoyed cameras all his life, but he didn't start to get serious until college. Now, at 53 years old, he takes photos professionally and works in stock and fine art photos. You can read more about Don at his website.

Mythbuster drives a truck at same speed forward as soccer ball thrown backward.  Ball falls straight down

From a Japanese TV show - a real life example of adding vectors and relative motion. The truck is moving at 100km/hr and a ball is shot backwards at 100 km/hr, resulting in it coming to a complete stop.