A) 3
B) 6
C) 9
D) 12
Correct Answer: C
Solution :
\[\Sigma \,\mathbf{F}=2\mathbf{j}-\mathbf{k},\] \[\overrightarrow{AB}=2\mathbf{i}+4\mathbf{j}-\mathbf{k}\], \\[\Sigma \,\mathbf{F}\,.\,\overrightarrow{AB}=8+1=9.\]You need to login to perform this action.
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