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Mathematics
Problem
Find the magnitude and direction of
r
1
−
r
2
\mathbf{r}_1 - \mathbf{r}_2
r
1
−
r
2
when
∣
r
1
∣
=
5
|\mathbf{r}_1| = 5
∣
r
1
∣
=
5
and points North-East while
∣
r
2
∣
=
5
|\mathbf{r}_2| = 5
∣
r
2
∣
=
5
but points North-West.
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