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Physics
Physics
Problem
A particle is acted upon by constant forces
4
i
^
+
j
^
−
3
k
^
4\hat{i} + \hat{j} - 3\hat{k}
4
i
^
+
j
^
−
3
k
^
and
3
i
^
+
j
^
−
k
^
3\hat{i} + \hat{j} - \hat{k}
3
i
^
+
j
^
−
k
^
which displace it from a point
i
^
+
2
j
^
+
3
k
^
\hat{i} + 2\hat{j} + 3\hat{k}
i
^
+
2
j
^
+
3
k
^
to the point
5
i
^
+
4
j
^
+
k
^
5\hat{i} + 4\hat{j} + \hat{k}
5
i
^
+
4
j
^
+
k
^
. The work done in standard units by the forces is given by a. 40 units b. 30 units c. 25 units d. 15 units
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