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!

Homework Help: Components of a vector

  1. Feb 9, 2006 #1
    A boat sails in a straight line 20km [N30°E]. What are the components of its displacement to the north and east?

    the answers given are 17 km [N] and 10 km [E], but using the formulae
    Ay = A Sin σ and Ax = A Cos σ, i've got the values mixed up... could it be because i've drawn it wrong? i've got it drawn as 30° North of East... Does N30°E mean 30° east of north?
  2. jcsd
  3. Feb 9, 2006 #2
    hey Bobby,

    yes, it does mean 30 degrees east of north. therefore your sigma value is 60 deg instead of 30.
    that should fix ya :smile:

Share this great discussion with others via Reddit, Google+, Twitter, or Facebook