Phys2A_F07_Lecture_05

Phys2A_F07_Lecture_05 - W P Beyermann Fall 2007 1...

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Unformatted text preview: W. P. Beyermann Fall 2007 1 Developing a Good Problem-Solving Strategy Representations of Knowledge • Verbal representation • Pictorial representation • Physical representation • Graphical representation • Mathematical representation W. P. Beyermann Fall 2007 2 Pictorial Representation A rocket sled accelerates at 50 m/s 2 for 5 seconds, then coasts for 3 seconds. What is the total distance traveled? W. P. Beyermann Fall 2007 3 Problem-Solving Strategy Model – Think about what information is given and what you want to find. (i.e., what are the relevant parts of the problem.) What are the simplifying assumptions (i.e., particle model)? Visualize – Draw a pictorial & physical representation of the problem. You can go back and forth between these representations. Solve – Develop a mathematical representation. The visualization step should help with this process. Assess – Crap detection. After you are done, step back and ask “Does it make sense?” Are the units correct? W. P. BeyermannW....
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Phys2A_F07_Lecture_05 - W P Beyermann Fall 2007 1...

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