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Problem
Velocity of a particle at some instant is
v
=
(
3
i
^
+
4
j
^
+
5
k
^
)
\mathbf{v} = (3\hat{i} + 4\hat{j} + 5\hat{k})
v
=
(
3
i
^
+
4
j
^
+
5
k
^
)
m/s. Find speed of the particle at this instant.
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