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Problem
Problem
A particle moves with a velocity
v
=
(
5
i
^
−
3
j
^
+
6
k
^
)
ms
−
1
\mathbf{v} = (5\hat{i} - 3\hat{j} + 6\hat{k}) \text{ ms}^{-1}
v
=
(
5
i
^
−
3
j
^
+
6
k
^
)
ms
−
1
under the influence of a constant force
F
=
(
10
i
^
+
10
j
^
+
20
k
^
)
N
\mathbf{F} = (10\hat{i} + 10\hat{j} + 20\hat{k}) \text{ N}
F
=
(
10
i
^
+
10
j
^
+
20
k
^
)
N
. The instantaneous power applied to the particle is a.
200
W
200 \text{ W}
200
W
b.
320
W
320 \text{ W}
320
W
c.
140
W
140 \text{ W}
140
W
d.
170
W
170 \text{ W}
170
W
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