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Mathematics Grade 9 Unit 8: VECTORS IN TWO DIMENTIONS
national exam questions have come from this unit. It runs 33 pages; one careful study pass takes about 2.4 hours, and its difficulty is easier among Mathematics units. Each section below lists the questions set from it, with the year, and opens the page that teaches it.
8.1 Vector and Scalar Quantities · read p. 279
- 2017 E.C., Q30 – Which one of the following is a scalar quantity?
8.2 Representation of a Vector · read p. 281
- 2017 E.C., Q50 – If two vectors $\vec{V}=\overrightarrow{AB}$, and $\vec{U}=\overrightarrow{BC}$ are given as shown in the figure below. Then what is the vector $\vec{V}+\vec{U}$?
8.3 Vectors Operations · read p. 288
Not asked in a national paper yet.
8.4 Position Vector · read p. 299
- 2015 E.C., Q44 – Let u = (-1,6) and v = (2, 4) be position vectors. Then the vector 4u - 3v is
8.5 Applications of Vectors in Two Dimensions · read p. 303
- 2018 E.C., Q39 – If the initial point of a vector is $A(2,-1,4)$ and the terminal point is $B(4,3,2)$, what is the position vector $\overrightarrow{AB}$?
- 2018 E.C., Q40 – Let vector have an initial point at (1,2)and a terminal point at (-3,6). What are the components of the vector ?
- 2017 E.C., Q46 – Let $A(-1, 2)$ and $B(0, 5)$ be initial and terminal points of vector $\overrightarrow{AB}$. What is the position vector of $\overrightarrow{AB}$?
- 2016 E.C., Q12 – Given vectors $\vec{u}$ having initial point $(-1, 0)$ and terminal point $(2, 3)$ and $\vec{v}$ with initial point $(5, -2)$ and terminal point $(2, 3)$, then $\vec{v} - \vec{u}$ is equal to:
- 2014 E.C., Q23 – Let $\vec{u}$ be a vector of length 3.5, cm directed to the East and $\vec{v}$ be a vector of length 3cm directed to the north.Then $\vec{u} + \vec{v}$ is equals to a vector of length:
- 2013 E.C., Q22 – What is the magnitude of the vector whose initial point is at (1, -3) and terminal point is at (4, 1)?