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 units
D) 4 units
Show Answer
Answer:
Correct Answer: D
Solution:
Area $ =| 2\hat{i}\times 2\hat{j} | $
$ = |4\hat{k}|$
$ = 4 unit. $
BETA
