A) \[6\widehat{j}\,Nm\]
B) \[-6\,\widehat{i}\,Nm\]
C) \[6\,\widehat{k}\,Nm\]
D) \[6\,\widehat{i}\,Nm\]
Correct Answer: B
Solution :
[b] |
\[\overrightarrow{\tau }=\overrightarrow{r}\times \overrightarrow{F}\] |
\[\overrightarrow{\tau }=2\,\overrightarrow{k}\times 3\,\overrightarrow{j}\] |
\[\overrightarrow{\tau }=6\,\overrightarrow{i}\,\,Nm\] |
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