#Vectors Question
22 messages · Page 1 of 1 (latest)
We note that $$\vec{AF}+\vec{AC}=\vec{AB}+\vec{AE}=\vec{AD}$$
As such
$$\vec{AF}+\vec{AC}+\vec{AB}+\vec{AE}+\vec{AD} = 3\vec{AD}$$
$||\vec{AD}||=2$ since $ABCDEF$ is a regular hexagon with unit (1) side lengths, which can be divided into 6 congruent equilateral triangles. So
$3\vec{AD}$ has magnitude 6 and direction $\vec{AD}$, note that the angle between $\vec{AB}$ and $\vec{AD}$ is $60^{\circ}$.
Crystopher
Then the answer AB is wrong then right?
not really, it says $60^{\circ}$ to $\vec{AB}$
Crystopher
which is in other words the direction of $\vec{AD}$
Crystopher
So the answer is correct, although it could be expressed in a simpler way.
How do you know if the angle is 60 degrees?
Since only the corners of the hexagon are 60 degrees
Crystopher
So this angle is $60^{\circ}$
Crystopher
this image describes it in better quality
OOOHH my bad I thought that the corners are 60 but their all 120 sorry