A force \[\vec{F}=3\hat{i}+4\hat{j}-3\hat{k}\] is applied at the point P, whose position vector is \[\overrightarrow{r}=\widehat{2i}-2\hat{j}-3\hat{k}\]. What is the magnitude of the moment of the force about the origin?

A force \[\vec{F}=3\hat{i}+4\hat{j}-3\hat{k}\] is applied at the point

1.	A force \[\vec{F}=3\hat{i}+4\hat{j}-3\hat{k}\] is applied at the point P, whose position vector is \[\overrightarrow{r}=\widehat{2i}-2\hat{j}-3\hat{k}\]. What is the magnitude of the moment of the force about the origin?
A.	23 units
B.	19 units
C.	18 units
D.	21 units
Answer» B. 19 units

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A force \[\vec{F}=3\hat{i}+4\hat{j}-3\hat{k}\] is applied at the point P, whose position vector is \[\overrightarrow{r}=\widehat{2i}-2\hat{j}-3\hat{k}\]. What is the magnitude of the moment of the force about the origin?

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