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

Find the magnitude.

4

5

3

square root of 5

• Question 2
60 seconds
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Q.

Component Form

<-3, -7>

<3, -7>

<-3, 7>

<7, 3>

• Question 3
60 seconds
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Q.

Write in component form.

<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>

2√3

2√17

2√15

2√5

• Question 5
120 seconds
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Q.

Determine the direction of <8, -2>

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.

51.4

2646.1

841.9

29.0

• Question 7
30 seconds
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Q. Which statement describes a vector?
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?
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?
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?
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?
77N
92N
120N
60N
• Question 12
30 seconds
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Q.

Write the vector from C to A...

a

-a

b

-b

• Question 13
60 seconds
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Q.

Write the vector from A to D...

a + b

-a + b

b - a

a - b

• Question 14
60 seconds
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Q.

Write the vector from C to B...

a + b

-a + b

b + a

a - b

• Question 15
60 seconds
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Q.

Write the vector from F to D...

y - z

x + z

-x + z

z - x

• Question 16
60 seconds
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Q.

Write the vector from A to D...

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...

r + s

s - r

s + r

r - s

• Question 18
30 seconds
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Q.

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.

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

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

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?

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

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.
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?

• Question 26
30 seconds
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Q.

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

• Question 27
30 seconds
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Q.

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

• Question 28
30 seconds
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Q.

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

• 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).

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?