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Mathematics
Problem
The vector
P
=
3
i
^
+
4
j
^
\mathbf{P}=3\hat{i}+4\hat{j}
P
=
3
i
^
+
4
j
^
lies in the
x
y
xy
x
y
-plane. Find the unit vector in the direction of
P
\mathbf{P}
P
. a)
3
i
^
+
4
j
^
25
\dfrac{3\,\hat{i}+4\,\hat{j}}{25}
25
3
i
^
+
4
j
^
b)
0.8
i
^
+
0.6
j
^
0.8\,\hat{i}+0.6\,\hat{j}
0.8
i
^
+
0.6
j
^
c)
0.6
i
^
+
0.8
j
^
0.6\,\hat{i}+0.8\,\hat{j}
0.6
i
^
+
0.8
j
^
d)
3
i
^
+
4
j
^
7
\dfrac{3\,\hat{i}+4\,\hat{j}}{7}
7
3
i
^
+
4
j
^
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