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Spring 2008  Phys 5A  2/27  Lecture 1.14  50 minutes
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"The goal of inanimate objects is to resist man
and ultimately defeat him."
--Russell Baker

TODAY (*.pdf)
Clicker homework

Chs. 4.5-4.7: Mechanical Interactions
     Brewski sampler (Morgan Street Brewery, St. Louis, MO)
     Ex: Static vs. kinetic friction
         (University of Minnesota)
     Ex: Problem 4.51 (extended)
     Ex: Problem 4.56 (start)

ANNOUNCEMENT
Wednesday, 2/27 office hour 
**10:30-11:30 AM**

NEXT TIME
Homework
     Problem 3.42(a)-(c) (note a_y = -9.83 m/s^2)
     Comprehensive Problem 3.73 (for practice only)
     Problems 4.56 (solve for N and for coeff. of kinetic friction)
              4.71 (for practice only)
              4.72
              4.76
              4.77 (for practice only)
     Read Chs. 4.4, 4.8 
          (interaction pair/partners, Newton's third law)
          (Problem-Solving Strategy, p. 111)     

Problem-solving session (2.0 points)
     Problem 4.54
     (attempt before, work on during, and submit at end of next class)