Reading due Monday, December 1, 2008 at 8:30 a.m due to scheduling change.
Read Reese Chapter 10.11, 10.18 - 10.19, 12.0 - 12.9 and answer Reading Questions 11 on the Web.
Homework due Wednesday, December 3, 2008 at 4:00 p.m. Note that homework is due on Wednesday, not on Tuesday, for this assignment Homework should be turned in during class or placed in the box outside of the professor's office (Nielsen 343) by 4:00 p.m.
Chapter 10:
Questions: 32, 38
Problems: 27, 47, 50, 54, 66, 67, 73, 77
Chapter 12:
Questions: 14, 15
Problems: 2, 16
Problems A: This problem must be solved using the Context-Rich Problem Solutions Outline. Please print a copy of the worksheet from the web and use it to solve this problem.
Problem A:
You are ice skating on a (frictionless) lake with a friend
when an unfortunate accident occurs triggered by a strange series of events.
First, your friend who is skating very fast, about 20 m/s loses his
balance and begins sliding on the ice at that same speed. He crashes
into a log that is lying flat on the ice. The log is 3.0 meters long
and has twice his mass. He impacts the log exactly at one end of the
log at an angle perpendicular to the length of the log and he holds onto
the log. The crash causes the log to move along the ice
and to rotate around the center of mass of your friend and the log
(now stuck together). The end of the log swings around and the
end of the log that your friend is not stuck to hits you in the
leg giving you a very nasty bruise. The collision between the log
and your leg occurred just at the point where the log had rotated
180 degrees from its original position and the sum of the translational
velocity and rotational velocity was the greatest. How fast was the
end of the log moving when it hit your leg?