First slide

Scalars and Vectors

Question

In figure, $\vec{E}$ equals

Easy

A

$\vec{A}$
B

$\vec{B}$
C

$\vec{A} + \vec{B}$
D

$- (\vec{A} + \vec{B})$

Solution

We can observe $\vec{A} + \vec{B} + \vec{E} = 0$
$\Rightarrow \vec{E} = - (\vec{A} + \vec{B})$

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