1. Limited time only! Sign up for a free 30min personal tutor trial with Chegg Tutors
    Dismiss Notice
Dismiss Notice
Join Physics Forums Today!
The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

Vector Problem

  1. Dec 11, 2016 #1
    1. The problem statement, all variables and given/known data
    Find the value of ez if e = 1/3i + 2/3j + ezk

    2. Relevant equations
    Any help?

    3. The attempt at a solution
    Have no idea where to start
     
  2. jcsd
  3. Dec 11, 2016 #2
    Can you tell us anything about this equation? What textbook are you using?
     
  4. Dec 11, 2016 #3
    Im currently studying for an exam and I found this in past papers. Im using no book atm.
     
  5. Dec 12, 2016 #4

    haruspex

    User Avatar
    Science Advisor
    Homework Helper
    Gold Member
    2016 Award

    My only guess is that e is supposed to be a unit vector. Any idea if that is right? If not, is it possible for you to upload an image of the question? You might be omitting a key detail which you do not realise is important.
     
  6. Dec 12, 2016 #5
    This is the exact question :" The vector e=1/3i+2/3j+ezk is a unit vector. Find ez?"
    The possible answers are 0,1,1/3 and 2/3
     
  7. Dec 12, 2016 #6

    PeroK

    User Avatar
    Science Advisor
    Homework Helper
    Gold Member

    Do you know what a unit vector is?
     
  8. Dec 12, 2016 #7
    Do you know what it means for a vector to have a unit length (i.e. to be a unit vector)?
     
  9. Dec 12, 2016 #8
    Ahh I get you know. It has a magnitude of 1.
    Thanks so much
     
Know someone interested in this topic? Share this thread via Reddit, Google+, Twitter, or Facebook

Have something to add?
Draft saved Draft deleted



Similar Discussions: Vector Problem
  1. Vector problem (Replies: 1)

  2. Submarine Vector Problem (Replies: 18)

  3. Vector Problem (Replies: 4)

  4. Vector problem (Replies: 14)

Loading...