Homework 3, 2d motion 23-24-problems
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Course
101
Subject
Mathematics
Date
Apr 3, 2024
Type
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4
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peacock (ip6239) – Homework 3, 2d motion 23-24 – tejeda – (KayaAPHY1
1)
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through this homework assignment.
001(part1of2)10.0points
Express the vector
vector
R
A
B
C
D
P
R
in terms of
vector
A
,
vector
B
,
vector
C
, and
vector
D
, the edges of a
parallelogram.
1.
vector
R
=
vector
B
+
vector
D
2.
vector
R
=
vector
C
+
vector
D
3.
vector
R
=
vector
B
-
vector
A
4.
vector
R
=
vector
A
+
vector
D
5.
vector
R
=
vector
D
-
vector
A
6.
vector
R
=
vector
A
-
vector
D
7.
vector
R
=
vector
B
+
vector
A
8.
vector
R
=
vector
A
-
vector
C
9.
vector
R
=
vector
A
-
vector
B
10.
vector
R
=
vector
C
+
vector
B
002(part2of2)10.0points
Express the vector
vector
P
in terms of
vector
A
,
vector
B
,
vector
C
, and
vector
D
,
1.
vector
P
=
vector
A
+
vector
D
2.
vector
P
=
vector
B
-
vector
A
3.
vector
P
=
vector
B
+
vector
A
4.
vector
P
=
vector
A
-
vector
B
5.
vector
P
=
vector
D
-
vector
A
6.
vector
P
=
vector
A
-
vector
D
7.
vector
P
=
vector
C
+
vector
B
8.
vector
P
=
vector
C
+
vector
D
9.
vector
P
=
vector
C
-
vector
A
10.
vector
P
=
vector
B
+
vector
D
003
10.0points
Vector
vector
B
has
x
,
y
, and
z
components of 8
.
3,
5
.
5, and 9
.
3 units, respectively.
Calculate the magnitude of
vector
B
.
004
10.0points
Vectors
vector
A
,
vector
B
,
vector
C
,
vector
D
, and
vector
E
are shown in
the figure. For convenience, the tails of each
vector are arbitrarily located at (0,0).
y
-
5
-
3
-
1 0
1
2
3
4
5
x
-
5
-
4
-
3
-
2
-
1
0
1
2
3
4
5
A
B
C
D
E
Identify
vector
R
= +
vector
A
+
vector
B
+
vector
C
+
vector
D
+
vector
E ,
1.
peacock (ip6239) – Homework 3, 2d motion 23-24 – tejeda – (KayaAPHY1
1)
2
y
-
5
-
3
-
1 0
1
2
3
4
5
x
-
5
-
4
-
3
-
2
-
1
0
1
2
3
4
5
R
2.
y
-
5
-
3
-
1 0
1
2
3
4
5
x
-
5
-
4
-
3
-
2
-
1
0
1
2
3
4
5
R
3.
None of these figures is correct.
4.
y
-
5
-
3
-
1 0
1
2
3
4
5
x
-
5
-
4
-
3
-
2
-
1
0
1
2
3
4
5
R
5.
y
-
5
-
3
-
1 0
1
2
3
4
5
x
-
5
-
4
-
3
-
2
-
1
0
1
2
3
4
5
R
005
10.0points
Two airplanes leave an airport at the same
time.
The velocity of the first airplane is
690 m
/
h at a heading of 44
.
6
◦
. The velocity
of the second is 560 m
/
h at a heading of 121
◦
.
How far apart are they after 2
.
6 h?
Answer in units of
m. Answer in units of
m.
006(part1of2)10.0points
One strategy in a snowball fight is to throw
a snowball at a high angle over level ground.
While your opponent is watching this first
snowball, you throw a second snowball at a
low angle and time it to arrive at the same
time as the first.
Assume both snowballs are thrown with
the same initial speed 11 m
/
s. The first snow-
ball is thrown at an angle of 75
◦
above the
horizontal. At what angle should you throw
the second snowball to make it hit the same
point as the first? Note the starting and end-
ing heights are the same. The acceleration of
gravity is 9
.
8 m
/
s
2
.
007(part2of2)10.0points
How many seconds after the first snowball
should you throw the second so that they
arrive on target at the same time?
Answer in units of s. Answer in units of s.
008(part1of3)10.0points
An Alaskan rescue plane traveling 35 m
/
s
drops a package of emergency rations from
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