Hey there! Sign in to join this conversationNew here? Join for free
    • Thread Starter
    Offline

    2
    ReputationRep:
    Edexcel January 2013, question 7. a)

    Basically just a normal collision question, but in the mark scheme for part (a) it says "(1-3e) is A0", I don't get why. I checked Arsey's model answers and he wrote (1-3e) so are we both wrong or am I misinterpreting it?
    • Study Helper
    Offline

    13
    Study Helper
    (Original post by 雷尼克)
    Edexcel January 2013, question 7. a)

    Basically just a normal collision question, but in the mark scheme for part (a) it says "(1-3e) is A0", I don't get why. I checked Arsey's model answers and he wrote (1-3e) so are we both wrong or am I misinterpreting it?
    Both attachments require a Google account login.

    Are you on commission?
    • Thread Starter
    Offline

    2
    ReputationRep:
    (Original post by ghostwalker)
    Both attachments require a Google account login.

    Are you on commission?
    damn I thought it was just the links to the physicsandmaths tutor pages :/
    Offline

    22
    ReputationRep:
    (Original post by 雷尼克)
    damn I thought it was just the links to the physicsandmaths tutor pages :/
    It's given that the direction of A is reversed, so your velocity needs the correct sign. Since the question is asking for speed, it needs to be the magntiude. You'll need to put up your diagram and working so I can see if you've gotten the directions correct.
 
 
 
  • See more of what you like on The Student Room

    You can personalise what you see on TSR. Tell us a little about yourself to get started.

  • Poll
    Would you like to hibernate through the winter months?
    Useful resources

    Make your revision easier

    Maths

    Maths Forum posting guidelines

    Not sure where to post? Read the updated guidelines here

    Equations

    How to use LaTex

    Writing equations the easy way

    Student revising

    Study habits of A* students

    Top tips from students who have already aced their exams

    Study Planner

    Create your own Study Planner

    Never miss a deadline again

    Polling station sign

    Thinking about a maths degree?

    Chat with other maths applicants

    Can you help? Study help unanswered threads

    Groups associated with this forum:

    View associated groups
  • See more of what you like on The Student Room

    You can personalise what you see on TSR. Tell us a little about yourself to get started.

  • The Student Room, Get Revising and Marked by Teachers are trading names of The Student Room Group Ltd.

    Register Number: 04666380 (England and Wales), VAT No. 806 8067 22 Registered Office: International House, Queens Road, Brighton, BN1 3XE

    Quick reply
    Reputation gems: You get these gems as you gain rep from other members for making good contributions and giving helpful advice.