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 addition physics help

  1. Jul 11, 2007 #1
    I have a question on 'vector addition'. I know that resultant is the sum of two or more vectors. But this sum doesn't mean the sum of magnitudes of two or more vectors, right? So what does that 'sum' refer to? Combined effect? Hope you can answer my question, thanks.
  2. jcsd
  3. Jul 11, 2007 #2
    The sum is the addition of the i, j, and k components of the vector. To find the magnitude of the sum you first need to add the components then find the magnitude of the resultant vector. i.e. take the square root of the sum of the squares.
Know someone interested in this topic? Share this thread via Reddit, Google+, Twitter, or Facebook

Similar Discussions: Vector addition physics help
  1. Vector addition help! (Replies: 6)

  2. Vector Addition Help! (Replies: 10)