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

FP2 Summer 2009 Q1 where am I going wrong here. Watch

    • Thread Starter
    Offline

    3
    ReputationRep:
    (Original post by davros)
    Integration is irrelevant to this question - I can't see the word "integral" mentioned anywhere in the screenshot.

    Areas are always positive; integrals can be negative.

    If you were asked to paint the area, would you go out and buy "minus 10 litres of paint"? I don't think so
    If on the other hand, since we are insisting on giving a physical interpretation to a pure maths question. If this was a velocity time graph, the area underneath would be a displacement in the opposite direction of any areas that were positive.

    As for painting walls, I have all my origins at floor level and buy paint made for the local coordinate system.
    • Thread Starter
    Offline

    3
    ReputationRep:
    (Original post by davros)
    Integration is irrelevant to this question - I can't see the word "integral" mentioned anywhere in the screenshot.

    Areas are always positive; integrals can be negative.

    If you were asked to paint the area, would you go out and buy "minus 10 litres of paint"? I don't think so
    To warm to the theme, when I go out in the morning, I exploit the negative area in my velocity time graph to get home, presumably, you circumnavigate the world (or the universe) in order to get back home.
    Offline

    17
    ReputationRep:
    Area underneath velocity time graph is distance, not displacement. To get home, you would have to travel a positive distance.
 
 
 
  • 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.