A) 175 \[\hat{k}\,\,N\text{-}m\]
B) 150 \[\hat{k}\,\,N\text{-}m\]
C) 75 \[\hat{k}\,\,N\text{-}m\]
D) \[25\sqrt{37}\,\hat{k}\,\,N\text{-}m\]
Correct Answer: B
Solution :
\[\overrightarrow{\tau }=\overrightarrow{M}\times \overrightarrow{B}\Rightarrow \overrightarrow{\tau }=50\hat{i}\times (0.5\hat{i}+3\hat{j})\] \[=150\left( \hat{i}\times \hat{j} \right)=150\hat{k}N\times m.\]You need to login to perform this action.
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