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    (Original post by Zacken)
    Check your s.
    true, but as its a distance (not a displacement in this case) it can only have magnitude - but I agree, strictly it should be negative
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    (Original post by Don Pedro K.)
    What is this from?
    Solomon Paper J
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    (Original post by candol)
    true, but as its a distance (not a displacement in this case) it can only have magnitude - but I agree, strictly it should be negative
    No, it's displacement. You will get the wrong answer if you do not use a negative.
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    Any harder questions/papers anyone would recommend? IAL is good?
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    (Original post by Zacken)
    No, it's displacement. You will get the wrong answer if you do not use a negative.
    I agree, (and said it should be negative), but you are unlikely to be penalised for turning it into a positive (you will simply get a negative height)
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    (Original post by thelegend99)
    Any harder questions/papers anyone would recommend? IAL is good?
    Jan 2015 IAL and Jan 2006 were pretty tricky
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    does anyone have the june 2015 IAL paper?
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    (Original post by bertolli1)
    Attachment 545123 sorry for the crap quality but does anyone know how to do this question? I can't find a mark scheme for it anywhere
    Name:  001.jpg
Views: 72
Size:  270.0 KBAttachment 545143545145

    This is what I got, may be wrong but I double checked it and I can't find anything
    Attached Images
     
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    [In this question, i and j are horizontal unit vectors due east and due north respectively and
    position vectors are given with respect to a fixed origin.]
    HOW DO I DO PART D????????
    A ship S is moving along a straight line with constant velocity. At time t hours the position
    vector of S is s km. When t = 0, s = 9i – 6j. When t = 4, s = 21i + 10j. Find
    (a) the speed of S,

    (b) the direction in which S is moving, giving your answer as a bearing.

    (c) Show that s = (3t + 9) i + (4t – 6) j.

    A lighthouse L is located at the point with position vector (18i + 6j) km. When t = T, the ship
    S is 10 km from L.
    (d) Find the possible values of T.
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    It's amazing how watching one Examsolutions video can make you understand something completely xD
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    (Original post by hamza250398)
    [In this question, i and j are horizontal unit vectors due east and due north respectively and
    position vectors are given with respect to a fixed origin.]
    HOW DO I DO PART D????????
    A ship S is moving along a straight line with constant velocity. At time t hours the position
    vector of S is s km. When t = 0, s = 9i – 6j. When t = 4, s = 21i + 10j. Find
    (a) the speed of S,

    (b) the direction in which S is moving, giving your answer as a bearing.

    (c) Show that s = (3t + 9) i + (4t – 6) j.

    A lighthouse L is located at the point with position vector (18i + 6j) km. When t = T, the ship
    S is 10 km from L.
    (d) Find the possible values of T.
    I would like to refer you to http://www.examsolutions.net/a-level...7&solution=7.4
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    Is there a difference between IAL and normal A Level M1 syllabi? Or is IAL just generally harder?
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    (Original post by thelegend99)
    Any harder questions/papers anyone would recommend? IAL is good?
    IAL are good. But hope you have done the last paper of solomon and the gold papers for edexcel.
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    (Original post by Patrick-Bateman)
    Is there a difference between IAL and normal A Level M1 syllabi? Or is IAL just generally harder?
    IAL is the international syllabus. Whereas the general A levels are done within the UK.
    I don't think there is any difference between the content of the specification. IAL is usually a little more tricky than the normal paper
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    (Original post by hamza250398)
    [In this question, i and j are horizontal unit vectors due east and due north respectively and
    position vectors are given with respect to a fixed origin.]
    HOW DO I DO PART D????????
    A ship S is moving along a straight line with constant velocity. At time t hours the position
    vector of S is s km. When t = 0, s = 9i – 6j. When t = 4, s = 21i + 10j. Find
    (a) the speed of S,

    (b) the direction in which S is moving, giving your answer as a bearing.

    (c) Show that s = (3t + 9) i + (4t – 6) j.

    A lighthouse L is located at the point with position vector (18i + 6j) km. When t = T, the ship
    S is 10 km from L.
    (d) Find the possible values of T.
    Name:  13382132_10209783278001284_1653904035_n.jpg
Views: 58
Size:  73.3 KBAttachment 545157545159
    Attached Images
     
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    (Original post by thehollowcrown)
    does anyone have the june 2015 IAL paper?
    Its on the edexcel website http://qualifications.pearson.com/en/home.html
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    (Original post by anujsr)
    IAL are good. But hope you have done the last paper of solomon and the gold papers for edexcel.
    Referring to Solomon L?
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    (Original post by thelegend99)
    Referring to Solomon L?
    Yeah.
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    (Original post by hogree)
    Jan 2015 IAL and Jan 2006 were pretty tricky
    I'll have a go at them, thanks! Any others you recommend?
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    (Original post by hogree)
    Jan 2015 IAL and Jan 2006 were pretty tricky
    Jan 2015 was a nice paper - had a good amount of content.
 
 
 
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