Physics 112
Homework #4
Spring 2006
*** Be sure to print without size reduction so the tick mark spacing on page 4 is 2.0 cm. ***
Read:
Chap. 4 (all);
Chap. 12, sections intro., 12.1, 12.2
For discussion: Chapter 4:
Qs #Q4.1, Q4.2, Q4.3, Q4.6, Q4.7, Q4.12, Q4.13, Q4.14, Q4.15
(not turned in)
Q4.21, Q4.25, Q4.26, Q4.28, Q4.30, Q4.32, Q4.34, Q4.36
Chapter 4:
Chapter 12:
Qs #12.2, 12.2, 12.3, 12.4;
Due Friday, Feb. 17 at lecture:
*** NOTE:
Be sure to begin each problem above that involves forces and Newton's Laws with a
carefully labeled free-body diagram showing all the interaction forces acting on each body of
interest.
In proceeding to solve each problem involving Newton's 2nd (or 1st) Law, always work
in an
inertial reference frame
, and first write out the appropriate component equation(s) of
Σ
F
=
m
a
carefully, with interaction forces from your free-body diagram(s) appearing only on the
left
side of your equation(s). ***
#4.26