hw06T - Tutorial 6 Homework Name Oomph I. SUV vs. car...

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Tutorial 6 Homework Name Oomph Tutorial section © University of Maryland Physics Education Research Group, Fall 2006. HW6-1 I. SUV vs. car On a test track, a sports utility vehicle (SUV) of mass 2000 kg, traveling at 12 m/s, hits a stationary car of mass 1000 kg. The car crumples and stays in contact with the SUV; they move together as a unit. A. Answer this without doing calculations: Which vehicle, if either, undergoes a greater change in velocity during the collision? How do you know? B. Without using formulas, see if you can intuitively guess the post-collision speed of the two vehicles. Briefly explain your common-sense reasoning. If you get totally stuck, move on. C. Now calculate the post-collision speed using momentum. D. If you got stuck in part B, do you now see a way that you could have “guessed” the post-collision speed? Explain. II. Common sense and formulas Now that you’ve heard hypothetical and real students (in tutorial and ILD) debate the relationship between equations and common sense, what’s your verdict? Specifically, which of the following best
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This note was uploaded on 12/28/2011 for the course PHYSICS 121 taught by Professor Shawhan during the Spring '10 term at Maryland.

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hw06T - Tutorial 6 Homework Name Oomph I. SUV vs. car...

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