Kinematics Question 291
Question: What is the unit vector perpendicular to the following vectors $ 2\hat{i}+2\hat{j}-\hat{k} $ and $ 6\hat{i}-3\hat{j}+2\hat{k} $
Options:
A) 0.5 unit
B) 1 unit
C) 2 unit
D) 4 unit
Correct Answer: D Area $ =| 2\hat{i}\times 2\hat{j} | $ $ =| 4\hat{k} | $ $ =4unit. $
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