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Physics
Physics
Problem
A particle in three-dimensional motion has instantaneous velocity
v
=
3
i
^
−
4
j
^
+
12
k
^
m/s
\mathbf v = 3\,\hat i - 4\,\hat j + 12\,\hat k\;\text{m/s}
v
=
3
i
^
−
4
j
^
+
12
k
^
m/s
. Calculate its instantaneous speed.
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