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AQA A2 Mathematics MM2B Mechanics 2 - Monday 22nd June 2015 [Exam Discussion Thread] Watch

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    (Original post by morgan8002)
    I have 8 maths exams and 18 exams total.
    Woah! What subjects do you do?!


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    (Original post by CD223)
    Woah! What subjects do you do?!


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    Further maths, physics, chemistry, biology, STEP I-III, 2 English IGCSEs. On top of that I'm taking FP3, FP4 and retaking one of the AS chemistry units.
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    (Original post by morgan8002)
    Further maths, physics, chemistry, biology, STEP I-III, 2 English IGCSEs. On top of that I'm taking FP3, FP4 and retaking one of the AS chemistry units.
    I feel for you
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    (Original post by morgan8002)
    Further maths, physics, chemistry, biology, STEP I-III, 2 English IGCSEs. On top of that I'm taking FP3, FP4 and retaking one of the AS chemistry units.
    :O
    What are you aiming for grade wise? Are you going to uni?


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    (Original post by CD223)
    :O
    What are you aiming for grade wise? Are you going to uni?


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    A* in maths(already achieved).
    A* in further maths(easy).
    A*/A in physics and chemistry(ideally A* but on a bad day it could be an A).
    A in biology.
    Aiming for 1s in STEP.

    Yes. I want to study mathematics and physics at Warwick.
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    (Original post by JackNorman)
    I feel for you
    Which subjects do you take?
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    (Original post by morgan8002)
    Which subjects do you take?
    A2 maths, AS further maths and A2 chemistry. Already have an A level in physics
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    (Original post by morgan8002)
    A* in maths(already achieved).
    A* in further maths(easy).
    A*/A in physics and chemistry(ideally A* but on a bad day it could be an A).
    A in biology.
    Aiming for 1s in STEP.

    Yes. I want to study mathematics and physics at Warwick.
    That's absolutely amazing. 5 subjects plus STEP must be a lot of work haha.

    Good luck. What's their offer?


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    (Original post by CD223)
    That's absolutely amazing. 5 subjects plus STEP must be a lot of work haha.

    Good luck. What's their offer?


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    AA including A in physics and C in English.
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    (Original post by morgan8002)
    AA including A in physics and C in English.
    Lol I think you'll exceed that with your eyes closed in every exam.


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    Can someone please help me with b part iii? Completely stuck on it.
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    (Original post by Tiwa)
    Can someone please help me with b part iii? Completely stuck on it.
    Name:  ImageUploadedByStudent Room1431806931.047179.jpg
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    Thanks so much! But why is x 0.0167 meteres?
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    (Original post by Tiwa)
    Thanks so much! But why is x 0.0167 meteres?
     x\not=0.7833m because it asks for the first time when the speed, v=0.8ms^{-1} after it is released from A.

    In other words, it wants the smallest distance from A that corresponds to that value of v.

    As 0.0167 < 0.7833,

    \Rightarrow x=0.0167m\ (3\ sf)


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    (Original post by CD223)
     x\not=0.7833m because it asks for the first time when the speed, v=0.8ms^{-1} after it is released from A.

    In other words, it wants the smallest distance from A that corresponds to that value of v.

    As 0.0167 < 0.7833,

    \Rightarrow x=0.0167m\ (3\ sf)


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    Thank you so much.
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    (Original post by Tiwa)
    Thank you so much.
    No problem! Gotta be the first time I've actually answered an EPE question correctly lol!


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    Does anyone have the
    Casio Graphics Calculator FX-9750GII that wouldn't mind giving me a brief tutorial on the main functions it can carry out, relevant for C3 / C4 / M2?

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    (Original post by CD223)
    Does anyone have the
    Casio Graphics Calculator FX-9750GII that wouldn't mind giving me a brief tutorial on the main functions it can carry out, relevant for C3 / C4 / M2?

    Name:  ImageUploadedByStudent Room1431967894.035824.jpg
Views: 227
Size:  15.0 KB
    I don't but I have a similar one. There may be some differences from what I say. You're not doing any modules where a calculator is particularly useful.
    You can draw graphs of Cartesian functions(should be obvious). You can check your answers for intersection points and maxima and minima.
    You can also draw parametric curves. In GRAPH, press F3(type), F3(Parm), then type your functions in T for x and y.
    You can sum series and perform numerical differentiation and integration of functions. In RUN, press F4(MATH) and then they should be there.You can't rely on this, but can check your answers with it.
    You can solve polynomials and get numerical approximations to the solutions of other equations in the EQUA mode. Again, you can't rely on it, but can check your answers.

    That's it really.
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    (Original post by morgan8002)
    I don't but I have a similar one. There may be some differences from what I say. You're not doing any modules where a calculator is particularly useful.
    You can draw graphs of Cartesian functions(should be obvious). You can check your answers for intersection points and maxima and minima.
    You can also draw parametric curves. In GRAPH, press F3(type), F3(Parm), then type your functions in T for x and y.
    You can sum series and perform numerical differentiation and integration of functions. In RUN, press F4(MATH) and then they should be there.You can't rely on this, but can check your answers with it.
    You can solve polynomials and get numerical approximations to the solutions of other equations in the EQUA mode. Again, you can't rely on it, but can check your answers.

    That's it really.
    Thank you! I really appreciate the pointers.

    Do you tend to use it much for pure maths / mechanics?


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    (Original post by CD223)
    Thank you! I really appreciate the pointers.

    Do you tend to use it much for pure maths / mechanics?


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    No. Mostly in pure and mechanics I do it in my head for the practice(STEP). Stats I do use the calculator a lot though.
 
 
 
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