Physics 112
Homework #2
Spring 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, Q2.6, Q2.10, Q2.11, Q2.12, Q2.15, Q2.16, Q2.20
E's & P's
#2.5, 2.19, 2.31, 2.32, 2.39, 2.41, 2.51, 2.53, 2.65, 2.79
Chap. 3: Q's
#Q3.14, Q3.16;
E's & P's
#3.37, 3.39, 3.43
Due Friday,Feb. 3 at lecture:
#2.35
[Motion Diagrams]
#1.47 & #1.51
[Vector Components]
#1.66
[Vectors]
#2.19
[Motion Graphs]
#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.
#3.93
[Relative Velocity/Reference Frames]
HINTS:
Start by working part (a) in the
reference frame of the river.
For part (b), switch to the reference frame of the ground.
1.
Two carts roll towards each other on a level table.
The
vectors represent the velocities of the carts before and after they collide.
A
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 Fall '07
 LECLAIR,A
 mechanics, Acceleration, Work, Velocity

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