• Join over 1.2 million students every month
  • Accelerate your learning by 29%
  • Unlimited access from just £6.99 per month
Page
  1. 1
    1
  2. 2
    2
  3. 3
    3
  4. 4
    4
  5. 5
    5
  6. 6
    6
  7. 7
    7
  8. 8
    8
  9. 9
    9
  10. 10
    10
  11. 11
    11
  12. 12
    12
  13. 13
    13
  14. 14
    14
  15. 15
    15
  16. 16
    16
  17. 17
    17
  18. 18
    18
  19. 19
    19
  20. 20
    20
  21. 21
    21
  22. 22
    22
  23. 23
    23
  24. 24
    24
  25. 25
    25
  26. 26
    26
  27. 27
    27

The speed of Ada and Fay

Extracts from this document...

Introduction

IB Student

DP1 HL Mathematics

Internal Assessment Type II

My Internal Assessment

In this internal assessment, I am going to create a recursive formula for a mathematic model. In this investigation, I use real life examples and uses real data to finish my investigation. Afterward, I place my model to real life case study. However, there are different limitations in different cases. Some of the limitations are dimensional plane, speed, boundaries and more. At last, I am going to present my recursive formula, image00.png.

The speed of Ada and Fay

After reading the Internal Assessment question sheet, I had an idea on using a similar real life case study. Then, I invite my cousin, Ada and her dog, Fay, to have a running test and let me collect a set of data for my Internal Assessment. Therefore, I set a straight track with a distance of 100 meters and they need to run for 10 times. So, I can collect a set of accurate data. After each of them run for 10 times, I will take an average time for the 100 meters run and then uses the speed formula,image01.png. In this formula, V stands for velocity, which is the speed; the S stands for distance, at last, T stands for the period of time the runner runs. Below is Ada’s data for running 100 meters:

Ada’s running records

Trails

Time (s)

1

16.6

2

16.7

3

16.8

4

16.7

5

16.6

6

16.5

7

16.6

8

16.8

9

16.5

10

16.7

After collecting Ada’s set of data, then I need to define the average time of Ada running a 100 meters track, in the other word, the mean of the data. Therefore, I am going to use the mean equation from the statistic chapter, which isimage12.png. The calculation will be as follow,

image22.png

From the calculation, I define that the average time of Ada running 100 meters is 16.7 seconds.

...read more.

Middle

There are different methods finding the distances of the lines. First, for lines “A1F2”, “A0F1” and “A1F1”, I am going to use the Python’s theorem. The calculation of the lines will shown below,

image02.png

After finding the distance of “A0F1”, then I got enough information to use the Python’s theorem to find the length of line “A1F1”.

image03.png

The length of “A1F1” is 65.115282 meters. Below will show the step to find “A1F2”.

image04.png

After calculation, I define the length of line ”A1F2” is 49.1153 meters. After finding this lines’ length, then I can use the propriety of similar triangle to define the length of “Y2F2” and “X2F2”.

image05.png

By finding “Y2F2”, we can know the Y-coordinate of Fay’s “F2” position.

image06.png

After finish calculating the length of lines, “F2X2” and “Y2F2”, now I got a full coordinate of Fay’s position in point “F2”, which is (48.2740, 2.9486).

Result of the diagram after finding all the unknowns

image07.png

For other points, it is using the same methods to determinate their coordinates. I am going to show the calculation below to define the coordinate of point “F3”. Afterward I will use the result to define a recursive formula for x- and y-coordinates of Fay’s position to establish a discrete mathematical model.

Calculation for “F3” coordinate

image08.png

Using Python’s theorem, to find “A2F2”,

image09.png

Finding “A2F3”,

image10.png

Using the propriety of similar triangle to define the length of “Y3F3”,

image11.png

By using Python’s theorem, to define the length of “a”, which “a” is equals “F3X3-F2X2”.

image13.png

Finding “F3X3”,

image14.png

After finding length of line “F3X3” and “Y3F3”, then I have calculated the coordinate of Fay’s position after six seconds, which is (33.6078, 9.3441).

...read more.

Conclusion

Conclusion

Throughout the internal assessment, I use real data instead of creating it. In this assessment, I include different methods, equation to help me to define the mean speed of Ada and Fay, to calculate the position of Fay and form a recursive formula and more.

In this assessment, I also use different kind of computer software to present my mathematic mode and finding solutions. I use “Grapher” in Mac to plot different graphs to solve problem and looked closely to the situation I got on my hand.  

image40.png

Snapshot One: Using the graphing software, Grapher by Apple

Except using “Grapher”, I also use AI (Adobe Illustrator) to draw the out line of Fay’s and Ada’s route. Then, I printed out and use for calculation. This software gave me a very accurate diagram that makes my calculation much more accurate and faster.

image42.png

Snapshot Two: Using Adobes Illustrator, to draw the diagram

At last, I use my friend while doing mathematics, which is my calculator, Casio fx-9860GII SD. The GDC help me to find the logarithm function for simulating the situation. In addition, it helps me to calculate different kinds of math problems while I am doing my internal assessment.

Due to the help of technology and my mathematic textbook, which was written by Smythe. I finally form the recursive formula to the mathematical model in this internal assessment, which is image00.png

Bibliography

  • Adobe Illustrator. Vers. CS4. United States: Adobe, 2010. Computer Software.
  • Fx-9860GII SD. Casio Computer Co/LTD. Tokyo. Japan. GDC
  • Grapher. Vers. 2.1(43). United States: Apple Inc, 2005. Computer Software.
  • Science, Design. Microsoft Equation Editor. Computer software. Vers. 3.o. Web. 20 March. 2010.
  • Smythe, Peter. Mathematics - Text and Teacher's Guide Higher and Standard Level With Higher Level Options. Grand Rapids: Mathematics, 2005. Print.

...read more.

This student written piece of work is one of many that can be found in our International Baccalaureate Maths section.

Found what you're looking for?

  • Start learning 29% faster today
  • 150,000+ documents available
  • Just £6.99 a month

Not the one? Search for your essay title...
  • Join over 1.2 million students every month
  • Accelerate your learning by 29%
  • Unlimited access from just £6.99 per month

See related essaysSee related essays

Related International Baccalaureate Maths essays

  1. Extended Essay- Math

    Rd;,q�@�G��*LH$�y$�r]...U��+@�"r�"~ز-d@=q�D���L�9@"@A�d��"(:$� �?P''"� D �����p�D@HF�(�b� #@2 ���E )��A���(�o�OA�d��"(:$� �?P''"� D �����p�D@HF�(�b� #@2 ���E )��A���(�o�OA�d��"(:$� �?P''"� D �����p�D@HF�(�b� #@2 ���E )��A���(�o�OA�d��"(:$� �?P''"� D �����p�D@HF�(�b� #@2 ���E )��A���� i��""IEND(r)B`�PK !3V�j�4�4word/media/image11.png�PNG IHDR�����RiCCPICC Profilex�YwTͲ�(tm)�,KXr�9�s"�a�K�Q��"� H ���*��""(�PD@�PD$1/2A?�{�y��ys����v���� �JTT�@xD\��(tm)!��" ?n�:� ����F��Y#��\����5&�#�0�72�@��������k��~Q1q ~ �'ĸ(� ��(��-;8�7^�3/4�0���� ;xZ %&'0B�O� Bä�'#�(c)0�!X�/��G�#--���,�or�� S(3/4�ȤP����� 2(tm)ØFI����"��#���EFZÚ0�۰"��?�� ��F�_6Cx ÎgG"���#|mw��ucL��...�� w0�� ��8;����)�F��E���&� �Xï¿½Ø ï¿½_��wpF�0�{bM�x�>%��o�o���a8�jj� &S�,v�bFl.i��2� �@�

  2. Mathematics Higher Level Internal Assessment Investigating the Sin Curve

    Since the value of is 0, there would be no translation in the horizontal direction, however the curve would be translated upwards in the vertical direction by 1 unit. On the other hand, the second equation would be look different from the first equation.

  1. Stopping distances portfolio. In this task, we may develop individual functions that model the ...

    Relationship between speed and overall stopping distances Speed [km/h] Thinking distance [m] Braking distance [m] Overall stopping distance [m] 32 1.125 6.104 12.1043 48 1.6875 13.5408 22.5411 64 2.25 24.1008 36.1011 80 2.8125 37.784 52.7843 96 3.375 54.5904 72.5907 112 3.9375 74.52 95.5203 Description The clearest relation between the two

  2. A logistic model

    and the excessively high (7.07x104)]. As previously explained, the population cannot remain that high and must thus stabilize itself, yet this search for stability only leads to another extreme value. The behaviour of the population is opposite to that of an equilibrium in the population (rate of birth=rate of death)

  1. Math Portfolio: trigonometry investigation (circle trig)

    r, a positive number is divided by a positive number resulting to a positive number. The value of y and the value of x equal to positive numbers respectively in quadrant 1. When the value of y is divided by the value of x, a positive number is divided by a positive number resulting to a positive number.

  2. Mathematics (EE): Alhazen's Problem

    intersection of the circle with the hyperbola, There are at most four places where a hyperbola intersects with a circle, therefore in general there should be four places where one could strike a ball so that it rebounds and hits the other.

  1. Population trends. The aim of this investigation is to find out more about different ...

    only difference would be that the curve of would take longer to stay at the same amount of population. This model is of equation , the number 250 is there only to increase the size of the curve and for it to be visible to such a scale.

  2. Mathematics internal assessment type II- Fish production

    After the year 1991, the graph displays another upward slope all the way to the year 1995, where the graph reaches its second highest point, at approximately 634 tonnes of fish caught. After the year 1995 all the way to 2006, the graph fluctuates and rises and falls thereby providing a wave-like form.

  • Over 160,000 pieces
    of student written work
  • Annotated by
    experienced teachers
  • Ideas and feedback to
    improve your own work