Scalars and Vectors
AP Physics C Mechanics · Flashcards
AP PHYSICS C MECHANICS · FLASHCARDS
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QUESTION
What is the zero vector?
QUESTION
What is a vector quantity?
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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