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Physics
Physics
Problem
A force
F
⃗
=
i
^
−
2
j
^
+
2
k
^
N
\vec F = \hat i - 2\hat j + 2\hat k\,\text{N}
F
=
i
^
−
2
j
^
+
2
k
^
N
is applied at a point whose position vector with respect to the origin is
r
⃗
=
2
i
^
+
4
j
^
+
3
k
^
m
\vec r = 2\hat i + 4\hat j + 3\hat k\,\text{m}
r
=
2
i
^
+
4
j
^
+
3
k
^
m
. Calculate the magnitude of the torque about the origin. a)
17.2
N
m
17.2\,\text{N}\,\text{m}
17.2
N
m
b)
8.3
N
m
8.3\,\text{N}\,\text{m}
8.3
N
m
c)
16.2
N
m
16.2\,\text{N}\,\text{m}
16.2
N
m
d)
15.7
N
m
15.7\,\text{N}\,\text{m}
15.7
N
m
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