A force \[F=2i+j-k\] acts at a point A, whose position vector is \[2i-j\]. The moment of F about the origin is

A force \[F=2i+j-k\] acts at a point A, whose position vector is \[2i-

1.	A force \[F=2i+j-k\] acts at a point A, whose position vector is \[2i-j\]. The moment of F about the origin is
A.	\[i+2j-4k\]
B.	\[i-2j-4k\]
C.	\[i+2j+4k\]
D.	\[i-2j+4k\]
Answer» D. \[i-2j+4k\]

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A force \[F=2i+j-k\] acts at a point A, whose position vector is \[2i-j\]. The moment of F about the origin is

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