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QMC%20Phys131B-FE%20%28work%29Sol

# QMC%20Phys131B-FE%20%28work%29Sol - Name last first Student...

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Name ___________________________________ Student ID ____________ Score _______ last first Physics 131, WI 2009 Final Exam QMC Phys131B-FE (work)Sol.doc Part B: Conceptual Multiple-Choice Questions I. Velocity and Acceleration [6 pts] The figure shows the position vs. time plot of a boat that is positioning itself next to a dock. 1. [2 pts] At which of the labeled points is the boat at rest for a significant time? A 2. [2 pts] At which of the labeled points does the boat have the largest positive velocity? E 3. [2 pts] At which of the labeled points does the boat have the largest positive acceleration? D II. Force and Work [4 pts] A force F, shown in the figure, acts on an object as it is moving along the x-axis. 4. [2 pts] How much work (in J) is done by the force as the object moves from x = 0 m to x = 4.0 m. A. 0.95 B. 1.60 C. 2.35 D. 3.20 E. 4.30 5. [2 pts] How much work (in J) is done by the force as the object moves from x = 4.0 m to x = 1.5 m. Time, t (s)

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Name ___________________________________ Student ID ____________ Score _______ last first Physics 131, WI 2009 Final Exam QMC Phys131B-FE (work)Sol.doc III. A Puck on the Table [4 pts]
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