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Physics 112
Homework #2
Fall 2006
Read:
Chapter 1, sections 1.8  1.10 (through Example 1.11 on page 27)
Chapter 3, section 3.5
Chapter 2, intro., sections 2.1  2.3, 2.6
For discussion:
Chap. 1: Q's #Q1.21; E's & P's #1.35, 1.43, 1.86 [answer: 109.5°]
(not turned in)
Chap. 2: Q's #Q2.3, Q2.4, Q2.5, Q2.6
E's & P's #2.5, 2.19, 2.31, 2.32, 2.51, 2.53
Chap. 3: Q's #Q3.14, Q3.16; E's & P's #3.37, 3.39, 3.43
Due Friday, Sep.8 at lecture:
#1.47
[Vector Components]
#1.51
[Dot Product & Angles]
#3.81
[Relative Velocity/Reference Frames]
For both parts, (a) and (b), please include
carefully drawn and labeled
velocity vector diagrams
showing how the airplane's velocity
relative to the ground is related to its velocity relative to the air.
#2.74
[Nonconstant Acceleration] Please add: (c)
Draw graphs showing the object's
position x(t), velocity v
x
(t), and acceleration a
x
(t) as functions of time t until the time in (b).
Please align your graphs one above another with their time axes synchronized.
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 Fall '07
 LECLAIR,A
 mechanics, Work

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