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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)