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    SEKOLAH MENENGAH KEBANGSAAN

    KINARUT, PETI SURAT 637,89608

    PAPAR, SABAH.

    Additional mathematics project

    work

    2014

    Vectors applications

    NAME : RENATHA JIFFRIN

    I.C NUMBER : 970213-12-XXXX

    CLASS: 5 HARMONI (2014)

    TEACHERS NAME: EN. NOR ZAWARI HARON

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    contents

    CONTENTS 1

    TITLE 2

    OBJECTIVES 3-4

    FOREWARD 5

    PART 1 6-11

    PART 2 12-18

    PART 3 19-22

    FURTHER

    EXPLORATION

    23-24

    CONCLUSION 25

    REFLECTION 26

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    1

    TITLE

    VECTOR

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    2

    objectivesThis project can be done in groups or individually but each of us

    has to submit an individually written report. Upon the completion

    of this Additional Mathematics Project Work we then will be able

    to obtain valuable experiences and able to;

    Apply and adapt varieties of problem-solving strategies then

    to solve routine and non-routine problems.

    Experience classroom environment which is

    challenging, interesting and meaningful hence improve our thinking

    skills.

    Experience the environments of the classroom where knowledge

    and skills are applied in proper ways in solving real-life

    problems

    Experience classroom environments where expressing ones

    mathematical thinking, reasoning and communication are highly

    encouraged and expected.

    Experience the environments that stimulate and enhance the

    effective learning.

    Acquire effective mathematical communication through oral and

    writing, and to use mathematics language to express mathematical

    ideas correctly and precisely. Enhance acquisition of mathematical knowledge and skills

    through problem-solving which can increase interest and

    confidence.

    A step of preparation for the future undertakings and in

    workplace.

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    Realise that mathematics is an important and powerful

    instrument in order to solve the problems in real life hence

    sparking a positive respond toward mathematics.

    3

    Able to train ourselves to collaborate, cooperate, and share

    the knowledge toward the people surround us.

    Use the technologies and ICT affectively.

    Train ourselves to appreciate intrinsic values of

    mathematics and to become more creative and innovative.

    Realize the beauty and importance of mathematics formulasand solutions.

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    4

    FOREWARD

    First of all, I would like to thank God, for giving me the strength

    and health to do this project work. Not to forget my parents for providing

    everything, such as money; to buy anything that are related to this projectwork. Moreover, their advice is very important to complete this project.

    They also supported me and encouraged me to complete this task so that I

    will not procrastinate in doing it. In addition, I would like to thank my

    teacher, En. Nor Zawari Haron for the guidance to the whole class

    throughout this project. We had some difficulties in doing this task, but he

    has taught us patiently until we managed to complete this task. Last but not

    least, thank you to my friends who has helped each other in order to

    complete this task.

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    5

    PART

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    6

    1.HISTORY OF VECTORS

    The parallelogram law for the addition of vectors is so intuitive that its

    origin is unknown. It may have appeared in a now lost work

    ofAristotle (384--322 B.C.), and it is in the Mechanicsof Heron (firstcentury A.D.) of Alexandria. It was also the first corollary inIsaac

    Newtons(1642--1727) Principia Mathematica(1687). In

    the Principia,Newton dealt extensively with what are now considered

    vectorial entities (e.g., velocity, force), but never the concept of a vector.

    The systematic study and use of vectors were a 19thand early 20thcentury

    phenomenon.Vectors were born in the first two decades of the 19thcentury

    with the geometric representations of complex numbers.

    August Ferdinand Mbius

    In 1827, August Ferdinand Mbius published a short book, The Barycentric

    Calculus, in which he introduced directed line segments that he denoted by

    letters of the alphabet, vectors in all but the name. In his study of centers of

    gravity and projective geometry, Mbius developed an arithmetic of these

    directed line segments; he added them and he showed how to multiply

    them by a real number. His interests were elsewhere, however, and no one

    else bothered to notice the importance of these computations.

    http://occawlonline.pearsoned.com/bookbind/pubbooks/thomas_awl/chapter1/medialib/custom3/bios/aristotle.htmhttp://occawlonline.pearsoned.com/bookbind/pubbooks/thomas_awl/chapter1/medialib/custom3/bios/newton.htmhttp://occawlonline.pearsoned.com/bookbind/pubbooks/thomas_awl/chapter1/medialib/custom3/bios/newton.htmhttp://occawlonline.pearsoned.com/bookbind/pubbooks/thomas_awl/chapter1/medialib/custom3/bios/newton.htmhttp://occawlonline.pearsoned.com/bookbind/pubbooks/thomas_awl/chapter1/medialib/custom3/bios/newton.htmhttp://occawlonline.pearsoned.com/bookbind/pubbooks/thomas_awl/chapter1/medialib/custom3/bios/newton.htmhttp://occawlonline.pearsoned.com/bookbind/pubbooks/thomas_awl/chapter1/medialib/custom3/bios/aristotle.htm
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    7

    William Rowan Hamilton

    In 1837, William Rowan Hamilton (18051865) showed that the complex

    numbers could be considered abstractly as ordered pairs (a,b) of real

    numbers. This idea was a part of the campaign of many mathematicians,

    including Hamilton himself, to search for a way to extend the two-

    dimensional numbers to three dimensions; but no one was able to

    accomplish this, while preserving the basic algebraic properties of real and

    complex numbers.

    James Clerk Maxwell

    James Clerk Maxwell (1831--1879) was a discerning and critical proponent

    of quaternions. Maxwell and Tait were Scottish and had studied together in

    Edinburgh and at Cambridge University, and they shared interests in

    mathematical physics. In what he called "the mathematical classification of

    physical quantities," Maxwell divided the variables of physics into two

    categories, scalars and vectors. Then, in terms of this stratification, he

    pointed out that using quaternions made transparent the mathematical

    analogies in physics that had been discovered byLord Kelvin (Sir William

    http://occawlonline.pearsoned.com/bookbind/pubbooks/thomas_awl/chapter1/medialib/custom3/bios/maxwell.htmhttp://occawlonline.pearsoned.com/bookbind/pubbooks/thomas_awl/chapter1/medialib/custom3/bios/maxwell.htmhttp://occawlonline.pearsoned.com/bookbind/pubbooks/thomas_awl/chapter1/medialib/custom3/bios/maxwell.htmhttp://occawlonline.pearsoned.com/bookbind/pubbooks/thomas_awl/chapter1/medialib/custom3/bios/thomson.htmhttp://occawlonline.pearsoned.com/bookbind/pubbooks/thomas_awl/chapter1/medialib/custom3/bios/thomson.htmhttp://occawlonline.pearsoned.com/bookbind/pubbooks/thomas_awl/chapter1/medialib/custom3/bios/maxwell.htmhttp://occawlonline.pearsoned.com/bookbind/pubbooks/thomas_awl/chapter1/medialib/custom3/bios/maxwell.htm
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    Thomson, 1824--1907) between the flow of heat and the distribution of

    electrostatic forces.

    8

    William Kingdon Clifford

    William Kingdon Clifford (1845--1879) expressed "profound admiration"

    for GrassmannsAusdehnungslehreand clearly favored vectors, which he

    often called steps, over quaternions. In his Elements of Dynamic(1878),

    Clifford broke down the product of two quaternions into two very different

    vector products, which he called the scalar product(now known as the dot

    product) and the vector product(today we call it the cross product). Forvector analysis, he asserted "[M]y conviction [is] that its principles will

    exert a vast influence upon the future of mathematical science." Though

    the Elements of Dynamicwas supposed to have been the first of a sequence

    of textbooks, Clifford never had the opportunity to pursue these ideas

    because he died quite young.

    Oliver Heaviside

    Oliver Heaviside (1850--1925), a self-educated physicist who was greatly

    influenced by Maxwell, published papers and his Electromagnetic

    Theory(three volumes, 1893, 1899, 1912) in which he attacked

    quaternions and developed his own vector analysis. Heaviside had receivedcopies of Gibbss notes and he spoke very highly of them. In introducing

    http://occawlonline.pearsoned.com/bookbind/pubbooks/thomas_awl/chapter1/medialib/custom3/bios/heaviside.htmhttp://occawlonline.pearsoned.com/bookbind/pubbooks/thomas_awl/chapter1/medialib/custom3/bios/heaviside.htmhttp://occawlonline.pearsoned.com/bookbind/pubbooks/thomas_awl/chapter1/medialib/custom3/bios/heaviside.htmhttp://occawlonline.pearsoned.com/bookbind/pubbooks/thomas_awl/chapter1/medialib/custom3/bios/heaviside.htm
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    Maxwells theories of electricity and magnetism into Germany (1894),

    vector methods were advocated and several books on vector analysis in

    German followed. Vector methods were introduced into Italy (1887, 1888,

    1897), Russia (1907), and the Netherlands (1903)

    9

    A vector is formally defined as an element of avector space.In the

    commonly encounteredvector space (i.e., Euclideann-space), a vector is

    given by coordinates and can be specified as . Vectors are

    sometimes referred to by the number of coordinates they have, so a 2-

    dimensional vector is often called a two-vector, an -dimensionalvector is often called ann-vector,and so on.

    Vectors can be added together (vector addition), subtracted (vector

    subtraction)and multiplied byscalars (scalar multiplication).Vector

    multiplication is not uniquely defined, but a number of different types of

    products, such as thedot product,cross product,andtensor direct

    product can be defined for pairs of vectors.

    Diagram 1.1(d)

    Based on Diagram 1.1(d), a vector from a point to a point is denoted ,

    and a vector may be denoted , or more commonly. The point is often called

    the "tail" of the vector, and is called the vector's "head." A vector with unit

    length is called aunit vector and is denoted using ahat, .

    http://mathworld.wolfram.com/VectorSpace.htmlhttp://mathworld.wolfram.com/VectorSpace.htmlhttp://mathworld.wolfram.com/n-Space.htmlhttp://mathworld.wolfram.com/n-Space.htmlhttp://mathworld.wolfram.com/n-Space.htmlhttp://mathworld.wolfram.com/n-Vector.htmlhttp://mathworld.wolfram.com/n-Vector.htmlhttp://mathworld.wolfram.com/n-Vector.htmlhttp://mathworld.wolfram.com/VectorAddition.htmlhttp://mathworld.wolfram.com/VectorSubtraction.htmlhttp://mathworld.wolfram.com/VectorSubtraction.htmlhttp://mathworld.wolfram.com/Scalar.htmlhttp://mathworld.wolfram.com/ScalarMultiplication.htmlhttp://mathworld.wolfram.com/VectorMultiplication.htmlhttp://mathworld.wolfram.com/VectorMultiplication.htmlhttp://mathworld.wolfram.com/DotProduct.htmlhttp://mathworld.wolfram.com/CrossProduct.htmlhttp://mathworld.wolfram.com/TensorDirectProduct.htmlhttp://mathworld.wolfram.com/TensorDirectProduct.htmlhttp://mathworld.wolfram.com/UnitVector.htmlhttp://mathworld.wolfram.com/Hat.htmlhttp://mathworld.wolfram.com/Hat.htmlhttp://mathworld.wolfram.com/UnitVector.htmlhttp://mathworld.wolfram.com/TensorDirectProduct.htmlhttp://mathworld.wolfram.com/TensorDirectProduct.htmlhttp://mathworld.wolfram.com/CrossProduct.htmlhttp://mathworld.wolfram.com/DotProduct.htmlhttp://mathworld.wolfram.com/VectorMultiplication.htmlhttp://mathworld.wolfram.com/VectorMultiplication.htmlhttp://mathworld.wolfram.com/ScalarMultiplication.htmlhttp://mathworld.wolfram.com/Scalar.htmlhttp://mathworld.wolfram.com/VectorSubtraction.htmlhttp://mathworld.wolfram.com/VectorSubtraction.htmlhttp://mathworld.wolfram.com/VectorAddition.htmlhttp://mathworld.wolfram.com/n-Vector.htmlhttp://mathworld.wolfram.com/n-Space.htmlhttp://mathworld.wolfram.com/VectorSpace.htmlhttp://mathworld.wolfram.com/VectorSpace.html
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    10

    2. FIVE VECTOR QUANTITIES

    -A physical quantities which has both magnitude and direction.

    Displacement: a vector quantity which represents the difference in

    the position of two points. It is given the symbol s and has unit of

    metres(m) in a specified direction.

    Force : if a force is applied on an object, the object will accelerate in

    proportion to the magnitude of the force and in the direction of the

    applied force.

    Acceleration: the rate of change of velocity.

    Velocity : is the rate of change of displacement.

    Momentum: a vector quantity which is defined as the product ofmass and velocity.

    3. A SITUATION THAT INVOLVES THE APPLICATION OF THE

    VECTORS

    *When crossing a flowing river.

    Diagram 1.1(e)

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    - The start is the point where you were about to cross a flowing river.

    - In this case, you need to know what point you will land on the

    opposite bank.

    - This situation only can be known through the application of vector.

    -

    Based on Diagram 1.1(e), it shows that vector is applied as there is a

    triangular-shaped direction of the crossing river process.

    11

    PART 2

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    12

    A Boeing 737 aircraft maintains a constant velocity of 800 kilometres per

    hour due South. The velocity of the jet is 100 kilometres per hour in the

    Northeast direction.

    1.

    Sketch the given vectors, with initial points at the origin, as

    accurately as possible on your graph paper. Scale your axes.

    ANSWER: *in graph

    2. a) Determine the angle ,, in degrees, for each vector measured in

    an anticlockwise direction from the positive x-axis. Then, state the

    magnitude of each vector.

    b)Express each vector above in the form v = x i+ y j and v =(.

    Use exact values(surds) for each vector and show your

    working.

    ANSWER:

    2.a) - The angle , of the vector of the velocity of the aircraft= 270South

    - The magnitude of the vector of the velocity of the aircraft = 800

    - The angle ,of the vector of the velocity of the air = 45 South East

    - The magnitude of the vector of the velocity of the air = 100

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    ANSWER:

    2(b)

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    3. The actual course of the plane is the sum of the two given vectors

    as stated in question 2(a). This is called the resultant vector, VR.

    (a) Would you use the Triangle Law or the Parallelogram Law

    to find this sum? Explain your chose.

    ANSWER:

    - I would choose the Triangle Law in order to find the sum of the two

    vectors given because it is easy to draw the diagram of the Triangle

    Law.

    (b) i) Based on your choice in 3(a), draw the resultant vector, VR

    by using a suitable scale.

    ANSWER: *in graph.

    ii) Hence, find the magnitude and direction of the resultant

    vector from 3(b)(i)

    ANSWER:

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    ANSWER:

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    4.

    (a) by using another method, find the magnitude of the

    resultant vector, VR . Show your working.

    (b)

    Find the bearing of the resultant vector, , in degrees. Give

    your answer correct to one decimal place.

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    ANSWER:

    4(a) & 4(b) :

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    PART 3

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    An aircraft is hkm above the ground at point Pwhen it starts to land on

    pointAwith angle of depression of 39.

    (a) Calculate the velocity of the aircraft when it descends from point B

    to pointA. State your assumption(s).

    ANSWER:

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    The velocity of the aircraft when it descends from point Bto pointA is

    115.808 kmh-1, assuming the velocity of the wind is 0 kmh-1.

    20

    (b) Based on Diagram 4 and your answer in PART 3(a), calculate the

    horizontal component and the vertical component of vector

    ANSWER:

    (c)

    If the aircraft eventually lands on point A within the range 7-8minutes, what is the range of the values of h? Give your answers

    correct to two decimal places.

    ANSWER:

    (c)If the aircraft eventually land on point A within 7 minutes, the

    distance of BA is 13.51 kmh-1

    Distance of BA =

    = 13.51kmh-1

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    *convert 7 minutes to seconds *115.808 is from AB

    21

    If the aircraft eventually lands on point A within 8 minutes, the

    distance of BA is

    Distance of BA =

    = 15.44kmh-1

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    FURTHER EXPLORATION

    ANSWER:

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    CONCLUSION

    By doing this project work, I can conclude that the theory of

    Vector has both magnitude and direction. This theory can also be used to

    calculate the distance from one point to another point.

    Moreover, by conducting research on the history of vectors

    and the applications of vectors in our daily life made me understand even

    deeply of its importance to our real life situations; such as crossing a

    flowing river, in sailing and the navigator of a plane.

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    reflection

    After doing research, answering questions, drawing graph, making

    conjectures, conclusion and some problems solving, I had realized that

    Additional Mathematics is vital in our daily life. Throughout this project

    work, it is quite enjoyable and interesting project because this project

    made me to plan things carefully and precisely in systematic condition. In

    fact, the further exploration is a good session for me to applied the

    situation when I am facing some problem solving in real life that will make

    me to use my knowledge on vectors. In a nutshell, I barely can apply the

    concepts and skills that I have learned in problem solving in Additional

    Mathematics. For my opinion, this project work is very beneficial for all the

    students in our country.

    VISION WITHOUT ACTION IS A DAYDREAM. ACTION WITHOUT VISION IS

    A NIGHTMARE JAPANESE PROVERB.

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