831PhysicsMedium
The unit vector in the direction of vector A = 2 i^ -2j^ + k^ is_______________?
A(2i^ – 2j^ +k^)/3
B(2i^ – 2j^ +k^)/9
C2i^ – 2j^ + k^
D(2i^ – 2j^ +k^)/5
Correct answer
A. (2i^ – 2j^ +k^)/3
Explanation
(2i^ – 2j^ +k^)/3 is the correct answer. Review the question and compare it with the other choices to remember this fact for future exams.