A) \[7(\hat{i}+2\hat{j}+2\hat{k})\]
B) \[\frac{7}{9}(\hat{i}+2\hat{j}+2\hat{k})\]
C) \[\frac{7}{3}(\hat{i}+2\hat{j}+2\hat{k})\]
D) None of these
Correct Answer: C
Solution :
Required vector\[=|\overrightarrow{b}|\hat{a}\] \[=|\overrightarrow{b}|\frac{\overrightarrow{a}}{|\overrightarrow{a}|}\] \[=\sqrt{9+36+4}\frac{(\hat{i}+2\hat{j}+2\hat{k})}{\sqrt{1+4+4}}\] \[=\frac{7}{3}(\hat{i}+2\hat{j}+2\hat{k})\]You need to login to perform this action.
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