SOLUTION: What unit vector is in the same direction as v = 2i

SOLUTION: What unit vector is in the same direction as v = 2i - 4j? Show all work.

Question 1202476: What unit vector is in the same direction as v = 2i - 4j?
Show all work.

Answer by ikleyn(52778) (Show Source): You can put this solution on YOUR website!
.


The unit vector is the given vector divided by the modulus, which is another name
for the length of the vector.


The length of the given vector is  L =  =  =  = .


Therefore, the unit vector in this problem is

     = *i - *j,


which is the same as

     = *i - *j.

Solved.

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