Vectors
17 minutes ago
kpr_51853
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30 QuestionsShow answers
  • Question 1
    60 seconds
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    Q.

    Find the magnitude.

    answer choices

    4

    5

    3

    square root of 5

  • Question 2
    60 seconds
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    Q.

    Component Form

    answer choices

    <-3, -7>

    <3, -7>

    <-3, 7>

    <7, 3>

  • Question 3
    60 seconds
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    Q.

    Write in component form.

    answer choices

    <0, 4>

    <8, 2>

    <2, 8>

    <0, 2>

  • Question 4
    120 seconds
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    Q.

    Determine the magnitude of the vector <8, -2>

    answer choices

    2√3

    2√17

    2√15

    2√5

  • Question 5
    120 seconds
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    Q.

    Determine the direction of <8, -2>

    answer choices

    346 degrees

    14 degrees

    166 degrees

    194 degrees

  • Question 6
    120 seconds
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    Q.

    2 forces 12N & 40N with angle between of 20 deg. Determine the magnitude of the resultant.

    answer choices

    51.4

    2646.1

    841.9

    29.0

  • Question 7
    30 seconds
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    Q. Which statement describes a vector?
    answer choices
    It has magnitude but no direction
    It has direction but no magnitude
    It has both direction and magnitude
    It has constant magnitude but no
     direction
  • Question 8
    30 seconds
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    Q. Which statement describes a vector?
    answer choices
    It has magnitude but no direction
    It has direction but no magnitude
    It has both direction and magnitude
    It has constant magnitude but no
     direction
  • Question 9
    30 seconds
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    Q. Which of these is not a vector quantity? 
    answer choices
    displacement 
    time
    velocity 
    acceleration
  • Question 10
    30 seconds
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    Q. What is the x component of the vector given in the diagram?
    answer choices
    77N
    92N
    120N
    60N
  • Question 11
    30 seconds
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    Q. What is the y component of the vector given in the diagram?
    answer choices
    77N
    92N
    120N
    60N
  • Question 12
    30 seconds
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    Q.

    Write the vector from C to A...

    answer choices

    a

    -a

    b

    -b

  • Question 13
    60 seconds
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    Q.

    Write the vector from A to D...

    answer choices

    a + b

    -a + b

    b - a

    a - b

  • Question 14
    60 seconds
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    Q.

    Write the vector from C to B...

    answer choices

    a + b

    -a + b

    b + a

    a - b

  • Question 15
    60 seconds
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    Q.

    Write the vector from F to D...

    answer choices

    y - z

    x + z

    -x + z

    z - x

  • Question 16
    60 seconds
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    Q.

    Write the vector from A to D...

    answer choices

    x + y + z

    x - y + z

    -x + y + z

    x - y - z

  • Question 17
    60 seconds
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    Q.

    Write the vector from C to B...

    answer choices

    r + s

    s - r

    s + r

    r - s

  • Question 18
    30 seconds
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    Q.
    answer choices

    a is the position vector of point A

    b is the direction vector of line L

    r is the position vector of all points in L, represented by P(x,y)

  • Question 19
    30 seconds
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    Q.
    answer choices

    OB + BC = OC

    OA + AC = OC

    CB + B0 = -OC

    OD = 0.5(OA + AC)

  • Question 20
    30 seconds
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    Q.

    Vectors a, b, c are defined as:

    a = 2i + 5j; b = i - 3j; c = -3i - j. Answer all correct answers

    answer choices

    a + b = 3i + 8j

    a - b = i + 8j

    a + c = -i + 4j

    c - b = -5i + 6j

  • Question 21
    30 seconds
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    Q.

    Vectors a, b, c are defined as:

    a = 2i + 5j; b = i - 3j; c = -3i - j. Answer all correct answers

    answer choices

    a + b = 3i + 8j

    a - b = i + 8j

    a + c = -i + 4j

    c - b = -5i + 6j

  • Question 22
    30 seconds
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    Q.

    Vector a = 2i + 3j - 5k. What is the value of 3a?

    answer choices

    3i + 3j - 3k

    5i + 6j - 8k

    6i + 9j -15k

    6i + 6j - 15k

  • Question 23
    30 seconds
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    Q.

    Given points A(2, 1) and B(-4, 1). Explain why the vector AB is parallel to the x-axis

    answer choices

    because vector AB is a multiple of the unit vector i

    because vector AB is a multiple of the unit vector j

    because vector AB is a multiple of the unit vector k

  • Question 24
    180 seconds
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    Q. Find the direction and magnitude of the resultant vector for the drawing of two forces.
    answer choices
    Direction 90°
    Magnitude 139.0N
    Direction 52.3°
    Magnitude 195N
    Direction 52.3°
    Magnitude 139.0N
    Direction 37.7°
    Magnitude 139.0N
  • Question 25
    30 seconds
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    Q.

    Which is NOT an equation for the vector diagram given?

    answer choices
  • Question 26
    30 seconds
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    Q.

    Given vectors u and v, find w when w=2u-3v.

    answer choices
  • Question 27
    30 seconds
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    Q.

    Which of the following vectors are parallel to vector a? (There may be multiple solutions.)

    answer choices
  • Question 28
    30 seconds
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    Q.

    Which of the following is equal to the vector equation given?

    answer choices
  • Question 29
    30 seconds
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    Q.

    Given parallelogram KOSH in space. Find point H when K(6,1,7); O(3,4,1); S(-2,0,5).

    answer choices

    H (1, -3, 11)

    H (-5, 3, -1)

    H (-7, -4, 9)

    H (11, 5, 3)

  • Question 30
    30 seconds
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    Q.

    Which unit vector is parallel to vector a?

    answer choices
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