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    OMG I'M LOSING MY MIND I'VE FORGOTTEN BASIC MATHS I UNDERSTOOD THIS LIKE A MONTH AGO NOW WHEN I DO M1 AFTER AGES I'VE FORGOTTEN. I'm going to seem really stupid :/ but can anyone explain why it's F = 2Tcos45 Why am I stuck on the easy things

    The hypotenuse is F, and so shouldn't it be Fcos45 = T x2 so F = 2T/cos45?
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    (Original post by KINGYusuf)
    OMG I'M LOSING MY MIND I'VE FORGOTTEN BASIC MATHS I UNDERSTOOD THIS LIKE A MONTH AGO NOW WHEN I DO M1 AFTER AGES I'VE FORGOTTEN. I'm going to seem really stupid :/ but can anyone explain why it's F = 2Tcos45 Why am I stuck on the easy things

    The hypotenuse is F, and so shouldn't it be Fcos45 = T x2 so F = 2T/cos45?
    The hypotenuse of T isn't F, the hypotenuse of the resultant off boths T's is F.

    Resolve each tension force separately, then add both forces together. Seen as the tensions are equal, you can just times by 2, as they resolve the same horizontally and vertically.

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    (Original post by KloppOClock)
    The hypotenuse of T isn't F, the hypotenuse of the resultant off boths T's is F.

    Resolve each tension force separately, then add both forces together. Seen as the tensions are equal, you can just times by 2, as they resolve the same horizontally and vertically.

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    Diagrams looking good bro
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    (Original post by Marxist)
    Diagrams looking good bro
    ha thanks
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    3c is pretty rude.

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    Why is there no normal reaction here ?
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    (Original post by Marccs)
    Why is there no normal reaction here ?
    reactions only occur when an object is in contact with a plane.
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    (Original post by hogree)
    3c is pretty rude.

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    I got 9 <f <18 (
    Do you know the answer?
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    (Original post by KloppOClock)
    reactions only occur when an object is in contact with a plane.
    Thank You
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    M1 Jan 2013 --> 65/75 = 82% = A.
    I felt I honestly deserved a A* on this paper but Q3 = :shot: but lesson learnt in future resolving questions. :sigh:

    Mistakes & tips for future past papers:
    - lost 2 marks on vectors because I didn't realise that if a vector is west its j component is zero and also to draw a clear diagram with what they are asking for.
    - I lost a full 8/8 marks on Q3 because I :dontknow: how to resolve it until after I looked at the solutions

    I'll be recording every past paper score that I do and my overall notes/opinion on that past paper.

    Past papers completed = 3/13. (edexcel regular + edexcel IAL) [excluding x2 MAM pp closer to exam date]
    I know I'm running behind :work: .... :cry2: ^

    Spoiler:
    Show
    Past paper scores: 80% (A), 80% (A), 82% (A) + ...
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    Guys say if I have a question like the one below where they are not separately marked (this was out of 10 for getting both answers) does it matter which answer I get first, e.g. can I find M first and then the force exerted at P or do I have to do the order they give?

    (a) (i) find the magnitude of the force exerted on the plank by the support at P,
    (ii) find the value of M
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    (Original post by ozzie2)
    Guys say if I have a question like the one below where they are not separately marked (this was out of 10 for getting both answers) does it matter which answer I get first, e.g. can I find M first and then the force exerted at P or do I have to do the order they give?

    (a) (i) find the magnitude of the force exerted on the plank by the support at P,
    (ii) find the value of M
    Yes you will lose marks in most if not all cases.
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    (Original post by Marxist)
    Yes you will lose marks in most if not all cases.
    really?
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    (Original post by Marxist)
    Yes you will lose marks in most if not all cases.
    Ahh ok thanks
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    What are some of the hardest past papers people have come across for M1? Doesn't have to be Edexcel (and I'd prefer non-Edexcel ones, since I think I've done the hard ones from that )
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    (Original post by 83457)
    What are some of the hardest past papers people have come across for M1? Doesn't have to be Edexcel (and I'd prefer non-Edexcel ones, since I think I've done the hard ones from that )
    here
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  1. File Type: pdf Mechanics 1 Practice Paper 4.pdf (509.4 KB, 80 views)
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    (Original post by KloppOClock)
    here
    I'm scared to even open this.
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    (Original post by Don Pedro K.)
    I'm scared to even open this.
    haha its a paper that cryptokyo made, question 2 is rock solid.
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    When can you assume that the reaction forces at two supports are the same? Is it only when the questions tell you they are, otherwise always assume they are not the same magnitude?
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    (Original post by 83457)
    What are some of the hardest past papers people have come across for M1? Doesn't have to be Edexcel (and I'd prefer non-Edexcel ones, since I think I've done the hard ones from that )
    Recent AQA papers, and also Delphis ones.
 
 
 
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