Scalars and Vectors
AP Physics C Mechanics · Flashcards · Application
AP PHYSICS C MECHANICS · FLASHCARDS
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QUESTION
Find the magnitude of vector
\textbf{v} = \begin{bmatrix} 5 \ 12 \\ \textend{bmatrix}
.
QUESTION
What is the resultant of vectors
A
=
[
2
3
]
\textbf{A} = \begin{bmatrix} 2 \\ 3 \end{bmatrix}
A
=
[
2
3
]
and
B
=
[
1
1
]
\textbf{B} = \begin{bmatrix} 1 \\ 1 \end{bmatrix}
B
=
[
1
1
]
?
QUESTION
Find the magnitude of vector
v
=
[
5
12
]
\textbf{v} = \begin{bmatrix} 5 \\ 12 \end{bmatrix}
v
=
[
5
12
]
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ANSWER
The magnitude is 13. Use
∣
v
∣
=
5
2
+
12
2
=
169
=
13
|\textbf{v}| = \sqrt{5^2 + 12^2} = \sqrt{169} = 13
∣
v
∣
=
5
2
+
1
2
2
=
169
=
13
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