Results 1 to 2 of 2

Math Help - Parellel Vectors?

  1. #1
    Junior Member
    Joined
    Oct 2009
    Posts
    31

    Smile Parellel Vectors?

    c= 5i+2j
    d=-2i-4j

    find u if c+ud is parellel to vector i.

    I know the parallel bit is important but I don't know how. Would it be possible for you to explain to me how?

    Also its my first time here, hi
    Follow Math Help Forum on Facebook and Google+

  2. #2
    MHF Contributor
    skeeter's Avatar
    Joined
    Jun 2008
    From
    North Texas
    Posts
    12,135
    Thanks
    1013
    Quote Originally Posted by alibond07 View Post
    c= 5i+2j
    d=-2i-4j

    find u if c+ud is parellel to vector i.

    I know the parallel bit is important but I don't know how. Would it be possible for you to explain to me how?

    Also its my first time here, hi
    a vector parallel to the unit vector i will have zero for a j component.

    (5i + 2j) + u(-2i - 4j) = ai + bj

    what value of the scalar u will yield the vector ai + bj such that b = 0?
    Follow Math Help Forum on Facebook and Google+

Similar Math Help Forum Discussions

  1. Replies: 3
    Last Post: November 15th 2011, 06:10 PM
  2. Replies: 3
    Last Post: June 30th 2011, 09:05 PM
  3. [SOLVED] Vectors: Finding coefficients to scalars with given vectors.
    Posted in the Pre-Calculus Forum
    Replies: 2
    Last Post: January 23rd 2011, 01:47 AM
  4. Parellel lines,
    Posted in the Calculus Forum
    Replies: 1
    Last Post: July 21st 2009, 10:25 AM
  5. Replies: 4
    Last Post: May 10th 2009, 07:03 PM

Search Tags


/mathhelpforum @mathhelpforum