A) \[\operatorname{F}\left( \hat{i}+\hat{J} \right)\]
B) \[-\operatorname{F}\left( \hat{i}-\hat{j} \right)\]
C) \[\operatorname{F}\left( \hat{i}-\hat{j} \right)\]
D) \[-\operatorname{F}\left( \hat{i}+\hat{j} \right)\]
Correct Answer: A
Solution :
Position vector \[\left( {\vec{r}} \right)=\hat{i}-\hat{j}\] \[\operatorname{Force} =-F\hat{k}\] \[\tau =\vec{r}\times \vec{F}\] \[\tau =F\left( \hat{i}-\hat{j} \right)\]You need to login to perform this action.
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