Velocity

Discussion in 'Physics' started by Lightfire, Sep 24, 2011.

  1. Lightfire

    Thread Starter Well-Known Member

    Oct 5, 2010
    690
    21
    Source: http://www.easyphysics.net/ch2/ch2.htm

    I have some questions about those two quotes, please answer.:D

    1) How come the displacement is 30 kilometers? (In first quote)
    2) What is scalar?

    3) What is vector?

    4) What is one dimensional?

    5) What is two dimensional?

    Catapult:D
     
  2. hgmjr

    Retired Moderator

    Jan 28, 2005
    9,030
    218
    30Km represents the net distance traveled. Consider that the initial travel was 50Km. Then the person backtracked 20Km. Does this clue help?


     
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