Concept explainers
A model plane flew 100 m in 25.0 s followed by another 240 m in an additional 60.0 s,
whereupon it crashed into the ground. How far did it travel in total? How long was it in
the air? What was its average speed? [Hint: The overall average is not equal to the
average of the averages. When you have several segments in a problem, label them like
this:
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Schaum's Outline of College Physics, Twelfth Edition (Schaum's Outlines)
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