pan (zp695) – Ch18h1 – chiu – (56565)
2
007 (part 6 of 6) 5.0 points
What is the magnitude and direction of
A
z
if
±
A
=
±
D
×
±
C
?
Correct answer:

23
.
4736.
Explanation:
See Explanation 4.
008 (part 1 of 3) 10.0 points
±
A
=
±
6
,
7
,

2
²×±
5
,

4
,
6
²
What is
A
x
?
Correct answer: 34.
Explanation:
±
A
=
±
6
,
7
,

2
5
,

4
,
6
²
=
±
[(7)(6)

(

2)(

4)]
,
[(7)(

5)

(6)(6)]
,
[(6)(

4)

(7)(

5)]
²
=
±
34
,

26
,
11
²
009 (part 2 of 3) 10.0 points
What is
A
y
?
Correct answer:

26.
Explanation:
See Explanation 1.
010 (part 3 of 3) 10.0 points
What is
A
z
?
Correct answer: 11.
Explanation:
See Explanation 1.
011 (part 1 of 3) 10.0 points
±
A
=
±
v
×
ˆ
r
.F
ind
±
A
if
±
v
=
±
430
,

450
,
333
²
m/s
and ˆ
r
=
±
0
.
577
,
0
.
577
,

0
.
577
²
.
What is
A
x
?
Correct answer: 67
.
509 m
/
s.
Explanation:
±
A
=
±
v
x
,v
y
z
²×±
r
x
,r
y
z
²
=
±
(
v
y
·
r
z

v
z
·
r
y
)
,
(
v
z
·
r
x

v
x
·
r
z
)
,
(
v
x
·
r
y

v
y
·
r
x
)
²
=
±
(

450)(

0
.
577)

(333)(0
.
577)
,
(

450)(0
.
577)

(430)(

0
.
577)
,
(430)(0
.
577)

(

450)(0
.
577)
²
=
±
67
.
509 m
/
s
,
440
.
251 m
/
s
,
507
.
76 m
/
s
²
012 (part 2 of 3) 10.0 points
What is
A
y
?
Correct answer: 440
.
251 m
/
s.
Explanation:
See Explanation 1.
013 (part 3 of 3) 10.0 points
What is
A
z
?