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Physics
Physics
Problem
Two forces
f
1
=
3
i
^
−
2
j
^
+
k
^
\mathbf{f}_1 = 3\hat{i} - 2\hat{j} + \hat{k}
f
1
=
3
i
^
−
2
j
^
+
k
^
and
f
2
=
i
^
+
3
j
^
−
5
k
^
\mathbf{f}_2 = \hat{i} + 3\hat{j} - 5\hat{k}
f
2
=
i
^
+
3
j
^
−
5
k
^
acting on a particle at
A
A
A
move it to
B
B
B
.Find the work done if the position vector of
A
A
A
and
B
B
B
are
−
2
i
^
+
5
k
^
-2\hat{i} + 5\hat{k}
−
2
i
^
+
5
k
^
and
3
i
^
−
7
j
^
+
2
k
^
3\hat{i} - 7\hat{j} + 2\hat{k}
3
i
^
−
7
j
^
+
2
k
^
.
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