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Vectors and 2D motion
Vectors and 2D motion
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Review for vector and 2d motion test.
Flashcards
15 cards
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Questions
15
Answers
1
Adding which two vectors would have the smallest resultant?
C + F
A + G
A + E
B + D
2
Which is faster: the speed of the boat or the current of the river?
they are the same
boat's speed is faster
river current is faster
3
The vector sum of A and B would point to which quadrant?
II
III
IV
I
4
What is the magnitude of your displacement if you walk 150. m north, then 25.0 m east?
127
152
175
151
5
You walk 31 m south and then 31 m east. The magnitude and direction of your displacement is...
44 east
62 north
44 northeast
44 southeast
6
The 60 degree angle shown is 60 degrees _______ of _______.
north, west
east, north
north, east
west, north
7
Relative velocity is based on
speed
frame of reference
velocity
trigonometry functions only
8
Which vector has the greatest magnitude?
A
F
C
G
9
If the boat is headed east, what direction is the river current?
north
east
west
south
10
IIf you wanted to end up straight across the river, which direction should you head the boat?
east
south of east
south
north of east
11
What is the man's speed relative to the ground?
18 m/s
13 m/s
23 m/s
5 m/s
12
Two vectors have magnitudes of 30 units and 40 units. Adding together, the maximum resultant is
30 units
40 units
50 units
70 units
13
You'r trying to cross a south flowing river from the west bank. You should head your boat _____
north of west
north of east
south of east
south of west
14
The boat is moving at 5 m/s east and the river flows at 5 m/s south. What is the net speed?
10.0 m/s
3.2 m/s
5.0 m/s
7.1 m/s
15
What is the horizontal component of vector M?
Msinx
Mcosx
M2-y2
Mtanx
