What is the resultant vector if the two vectors are added together? (What is the displacement?)
a)
<3, 6>
b)
<-9, -8>
c)
<9, 8>
d)
<6, 3>
5.
Calculate 7c + d
Write your answer like this: (a, b) where a is the top number of the vector and b is the bottom number of the vector.
(a)
6.
Find s + t
a)
b)
c)
d)
7.
Two forces on an object are in the same direction. How do we calculate the resultant force?
a)
take away one from the other
b)
multiply them
c)
divide one by the other
d)
add them together
8.
Which of the vectors, P, Q, R, S, or T, shown in the diagram is equal to A +B?
a)
P
b)
Q
c)
R
d)
S
e)
T
9.
The vector v has magnitude 8 and direction angle 90°. The vector w has magnitude 2 and direction angle 0°.
Find the magnitude and direction angle θ of the sum v+w.
Round your answers to the nearest thousandth.
a)
9.103
47.632 degrees
b)
6.120
45 degrees
c)
8.367
77.912 degrees
d)
8.246
76.964 degrees
10.
When adding two vectors graphically, a+b=c. Does b+a produce the same resultant vector c?
a)
Yes, two vectors added together always produce the same resultant vector
b)
No, because order matters
c)
Yes, but c will be pointing in the opposite direction
d)
No, because you can't add two vectors
11.
A car moved 60 km East and 90 km West. What is the displacement and the direction?
a)
30 km, West
b)
60 km. East
c)
90 km
d)
150 km
12.
a)
b)
c)
d)
e)
13.
a)
b)
c)
d)
e)
14.
What is the sum of two vectors referred to as?
a)
Product
b)
Resultant
c)
Effect
d)
Outcome
15.
Which of the vectors, P, Q, R, S, or T, shown in the diagram is equal to A +B?
a)
P
b)
Q
c)
R
d)
S
e)
T
16.
sum of the vectors
(a)
17.
Which one of these does not show an example of Tip to Tail method?
a)
b)
c)
d)
18.
What is the resultant of the two vectors shown above?
a)
+5
b)
-5
c)
+15
d)
-15
19.
If a car moves 12 km North, 19 km East, and 12 km South, what is its displacement?
a)
12 km
b)
19 km, East
c)
31 km
d)
43 km, East
20.
A car travels 90 meters due north. Then the car turns around and travels 40 meters due south. What is the magnitude and direction of the car's resultant displacement?
a)
40 meters, South
b)
50 meters, South
c)
50 meters, North
d)
40 meters, North
แป้นคำตอบ
Adding and subtracting vectors
คำถามทั้งหมด: 20
1.
a)
Tail to tail
2.
d)
Components
3.
b)
B
4.
a)
<3, 6>
5.
(3, 31), (3,31)
6.
b)
7.
d) add them together
8.
d)
S
9.
d)
8.246
76.964 degrees
10.
a)
Yes, two vectors added together always produce the same resultant vector
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