Homework Set 3
Assigned Tuesday, February 8, 2022
Due Thursday, February 24, 2022 at 11:59 p.m. PST
HALLIDAY
Chapter 3:
Problems 18, 20, 46, 56
Chapter 4:
Problems 11, 30, 35, 36, 90, 105, 117
ANSWERS TO EVEN-NUMBERED PROBLEMS
CHAPTER 3
18.
(a)
(b)
20.
(a)
(b)
46.
(a)
(b)
(c)
(d)
56.
(a)
(b)
(c)
26.6 m
209o counterclockwise from +x axis
5.0 km
4.3o south of west
4.2 m
50o counterclockwise from +x axis
8.0 m
r r
155.8o counterclockwise from +x axis (direction of b " a , per 10th edition)
or:
r r
24.2o clockwise from +x axis (direction of a " b , per 11th edition)
(10.0 m)i + (1.63 m)j
!
10.2 m
9.24o counterclockwise from +x !
axis
CHAPTER 4
30.
5.8 m/s
36.
(a)
yes
(b)
0.20 m
(c)
no
(d)
0.86 m
90.
23 ft/s