Hey there Sign in to join this conversationNew here? Join for free

bearings question

Announcements Posted on
Study Help needs new mods! 14-04-2014
Post on TSR and win a prize! Find out more... 10-04-2014
    • 24 followers
    Online

    (Original post by zoxe)
    same as tenofthem, how did you know the position of C1 and C2?
    Refering to my diagram, its the bearing of A from B, plus/minus theta.
    • 24 followers
    Online

    (Original post by SubAtomic)
    So the diagram in the OPs text book is completely wrong?
    It's certainly misleading, C1, so called, is not that close to North.

    Mind you, mine's not much better for C2.
    • 1 follower
    Offline

    ReputationRep:
    (Original post by ghostwalker)
    It's certainly misleading, C1, so called, is not that close to North.
    Love misleading questions, ending up with acute angles that are clearly obtuse using cosine rule, good old GCSE days :rolleyes:
    • 39 followers
    Offline

    ReputationRep:
    I drew my diagram using the fact that theta was 78.6
    • 24 followers
    Online

    (Original post by TenOfThem)
    I drew my diagram using the fact that theta was 78.6
    No comment. (see C2). :p:
    • 39 followers
    Offline

    ReputationRep:
    (Original post by ghostwalker)
    No comment. (see C2). :p:
    lol

    t'was only a sketch

    I still think it is better than the book's version
    • 1 follower
    Offline

    ReputationRep:
    Yeah just did it ignoring the diagram

     \cos^{-1}\left(\frac{19}{96}\right)=78.  58...
    • Thread Starter
    • 0 followers
    Offline

    ReputationRep:
    thanks guys.
    • 1 follower
    Offline

    ReputationRep:
    (Original post by zoxe)
    ...
    From this I gather it is still a good thing to take some diagrams with a ton of salt and just concentrate on the algebra and all the details which are written.

    That diagram had me puzzled.

    That 70 needs to be 180-78.6
    • Thread Starter
    • 0 followers
    Offline

    ReputationRep:
    (Original post by SubAtomic)
    From this I gather it is still a good thing to take some diagrams with a ton of salt and just concentrate on the algebra and all the details which are written.

    That diagram had me puzzled.

    That 70 needs to be 180-78.6
    After doing these types of questions it seems that I have forgotten a lot of geometric rules learnt at GCSE :\, does anyone have a website which just summarises them?
    • 1 follower
    Offline

    ReputationRep:
    (Original post by zoxe)
    After doing these types of questions it seems that I have forgotten a lot of geometric rules learnt at GCSE :\, does anyone have a website which just summarises them?
    lol I had to refresh just to be sure I didn't confuse or make a fool of myself again

    I just checked out bitesize

Reply

Submit reply

Register

Thanks for posting! You just need to create an account in order to submit the post
  1. this can't be left blank
    that username has been taken, please choose another Forgotten your password?

    this is what you'll be called on TSR

  2. this can't be left blank
    this email is already registered. Forgotten your password?

    never shared and never spammed

  3. this can't be left blank

    6 characters or longer with both numbers and letters is safer

  4. this can't be left empty
    your full birthday is required
  1. By completing the slider below you agree to The Student Room's terms & conditions and site rules

  2. Slide the button to the right to create your account

    Slide to join now Processing…

    You don't slide that way? No problem.

Updated: July 9, 2012
Article updates
Reputation gems:
You get these gems as you gain rep from other members for making good contributions and giving helpful advice.