chp2 problem51 soln

Physics: Principles with Applications

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Solution (a) If velocity is constant then the graph of displacement vs. time is linear and the velocity is equal to the slop. From the figure we see the plot is linear from Solution (b) Largest slope means greatest velocity since the displacement is also the greatest. From the figure the greatest slope is at Solution (c) If the velocity is zero then the displacement x remains constant while time increases thus the slope is zero. From the
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Unformatted text preview: figure between 35 s and 40 s the slope becomes zero at and the displacement is 20 m. Solution (d) Since the object's displacement started at zero went to 20 meters then to 10 meters it must of turned around. Or looking at the slope first its positive then negative so the velocity changed direction. http://www.hwproblems.com/cgi-bin/book.cgi?bookid=0044&cptn=2pr51&id=62762 [1/31/2008 12:16:39 PM]...
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