Results 1 to 2 of 2

Math Help - some properties of vectors - there is a point I don't understand it

  1. #1
    Senior Member
    Joined
    Oct 2009
    Posts
    290

    some properties of vectors - there is a point I don't understand it

    Hi



    Two vectors A and B are equal if they have the same magnitude and the same direction . this property allows us to translate a vector parallel to itself in a diagram without affecting the vector . In fact , for most purposes, any vector can be moved parallel to itself without being affected .



    can you give me an example of that point

    ------------

    When two or more vectors are added , they must all have the same units . It would be meaningless to add a velocity cector to a displacement vector .

    what that mean ?
    Follow Math Help Forum on Facebook and Google+

  2. #2
    Banned
    Joined
    Oct 2009
    Posts
    4,261
    Thanks
    2
    Quote Originally Posted by r-soy View Post
    Hi



    Two vectors A and B are equal if they have the same magnitude and the same direction . this property allows us to translate a vector parallel to itself in a diagram without affecting the vector . In fact , for most purposes, any vector can be moved parallel to itself without being affected .



    can you give me an example of that point


    Take a drawing of a parallelepiped, say a dice. Then any two parallel sides of any of the dice's faces represent exactly the same vector. Thus, you have 4 parallel sides in a dice which, as sides, are all different, but which as vectors are the same thing.

    Tonio


    ------------

    When two or more vectors are added , they must all have the same units . It would be meaningless to add a velocity cector to a displacement vector .

    what that mean ?
    .
    Follow Math Help Forum on Facebook and Google+

Similar Math Help Forum Discussions

  1. Replies: 2
    Last Post: October 15th 2011, 12:26 PM
  2. Replies: 7
    Last Post: August 7th 2011, 11:26 PM
  3. Replies: 2
    Last Post: October 11th 2009, 09:22 AM
  4. Replies: 3
    Last Post: March 25th 2009, 08:56 AM
  5. Replies: 1
    Last Post: March 13th 2009, 06:13 PM

Search Tags


/mathhelpforum @mathhelpforum