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AQA Paper 2 2018 June Q16
16
  1. \(\quad\) Find \(u\). 16 In this question use \(g = 9.81 \mathrm {~m} \mathrm {~s} ^ { - 2 }\) In this question use \(\boldsymbol { g } = 9.81 \mathrm {~m} \mathrm {~s} ^ { - 2 }\) 16
  2. Find the total time that the particle is in flight.
AQA Paper 2 2018 June Q17
17 A buggy is pulling a roller-skater, in a straight line along a horizontal road, by means of a connecting rope as shown in the diagram.
\includegraphics[max width=\textwidth, alt={}, center]{5e475c96-6bbb-44fb-a411-706dac20e2d6-24_240_1006_402_516} The combined mass of the buggy and driver is 410 kg
A driving force of 300 N and a total resistance force of 140 N act on the buggy.
The mass of the roller-skater is 72 kg
A total resistance force of \(R\) newtons acts on the roller-skater.
The buggy and the roller-skater have an acceleration of \(0.2 \mathrm {~m} \mathrm {~s} ^ { - 2 }\)
17
    1. Find \(R\).
      17
    2. 17
    3. (ii) Find the tension in the rope.
    4. 17
    5. The roller-skater releases the rope at a point \(A\), when she reaches a speed of \(6 \mathrm {~ms} ^ { - 1 }\) She continues to move forward, experiencing the same resistance force.
      The driver notices a change in motion of the buggy, and brings it to rest at a distance of 20 m from \(A\). 17
      1. Determine whether the roller-skater will stop before reaching the stationary buggy.
        Fully justify your answer.
        17
    6. (ii) Explain the change in motion that the driver noticed.
AQA Paper 2 2019 June Q1
1 Identify the graph of \(y = 1 - | x + 2 |\) from the options below.
Tick ( \(\checkmark\) ) one box.
\includegraphics[max width=\textwidth, alt={}, center]{838f0625-95e6-4ad4-b97b-3d3f77cc7f19-02_389_526_845_500}
B
\includegraphics[max width=\textwidth, alt={}, center]{838f0625-95e6-4ad4-b97b-3d3f77cc7f19-02_362_442_1279_525}
\includegraphics[max width=\textwidth, alt={}, center]{838f0625-95e6-4ad4-b97b-3d3f77cc7f19-02_113_116_977_1107}
C
\includegraphics[max width=\textwidth, alt={}, center]{838f0625-95e6-4ad4-b97b-3d3f77cc7f19-02_496_704_1688_523}
D
\includegraphics[max width=\textwidth, alt={}, center]{838f0625-95e6-4ad4-b97b-3d3f77cc7f19-02_474_686_2211_534}
AQA Paper 2 2019 June Q2
2 Simplify \(\sqrt { a ^ { \frac { 2 } { 3 } } \times a ^ { \frac { 2 } { 5 } } }\)
Circle your answer.
\(a ^ { \frac { 2 } { 15 } }\)
\(a ^ { \frac { 4 } { 15 } }\)
\(a ^ { \frac { 8 } { 15 } }\)
\(a ^ { \frac { 16 } { 15 } }\)
AQA Paper 2 2019 June Q3
3 Each of these functions has domain \(x \in \mathbb { R }\)
Which function does not have an inverse?
Circle your answer. $$\mathrm { f } ( x ) = x ^ { 3 } \quad \mathrm { f } ( x ) = 2 x + 1 \quad \mathrm { f } ( x ) = x ^ { 2 } \quad \mathrm { f } ( x ) = \mathrm { e } ^ { x }$$
AQA Paper 2 2019 June Q5
5 Solve the differential equation $$\frac { \mathrm { d } t } { \mathrm {~d} x } = \frac { \ln x } { x ^ { 2 } t } \quad \text { for } x > 0$$ given \(x = 1\) when \(t = 2\)
Write your answer in the form \(t ^ { 2 } = \mathrm { f } ( x )\)
AQA Paper 2 2019 June Q6
6 A curve has equation $$y = a \sin x + b \cos x$$ where \(a\) and \(b\) are constants. The maximum value of \(y\) is 4 and the curve passes through the point \(\left( \frac { \pi } { 3 } , 2 \sqrt { 3 } \right)\) as shown in the diagram.
\includegraphics[max width=\textwidth, alt={}, center]{838f0625-95e6-4ad4-b97b-3d3f77cc7f19-06_746_696_719_671} Find the exact values of \(a\) and \(b\).
AQA Paper 2 2019 June Q7
7
  1. Sketch the graph of any cubic function that has both three distinct real roots and a positive coefficient of \(x ^ { 3 }\)
    \includegraphics[max width=\textwidth, alt={}, center]{838f0625-95e6-4ad4-b97b-3d3f77cc7f19-08_997_1004_406_518} 7
  2. The function \(\mathrm { f } ( x )\) is defined by $$\mathrm { f } ( x ) = x ^ { 3 } + 3 p x ^ { 2 } + q$$ where \(p\) and \(q\) are constants and \(p > 0\)
    7
    1. Show that there is a turning point where the curve crosses the \(y\)-axis.
      7
  3. (ii) The equation \(\mathrm { f } ( x ) = 0\) has three distinct real roots. By considering the positions of the turning points find, in terms of \(p\), the range of possible values of \(q\).
AQA Paper 2 2019 June Q8
8 Theresa bought a house on 2 January 1970 for \(\pounds 8000\). The house was valued by a local estate agent on the same date every 10 years up to 2010. The valuations are shown in the following table.
Year19701980199020002010
Valuation price\(\pounds 8000\)\(\pounds 19000\)\(\pounds 36000\)\(\pounds 82000\)\(\pounds 205000\)
The valuation price of the house can be modelled by the equation $$V = p q ^ { t }$$ where \(V\) pounds is the valuation price \(t\) years after 2 January 1970 and \(p\) and \(q\) are constants. 8
  1. Show that \(V = p q ^ { t }\) can be written as \(\log _ { 10 } V = \log _ { 10 } p + t \log _ { 10 } q\)
    8
  2. The values in the table of \(\log _ { 10 } V\) against \(t\) have been plotted and a line of best fit has been drawn on the graph below.
    \(t\)010203040
    \(\log _ { 10 } V\)3.904.284.564.915.31
    \includegraphics[max width=\textwidth, alt={}]{838f0625-95e6-4ad4-b97b-3d3f77cc7f19-11_1927_1207_625_338}
    Using the given line of best fit, find estimates for the values of \(p\) and \(q\). Give your answers correct to three significant figures.
    8
  3. Determine the year in which Theresa's house will first be worth half a million pounds. 8
  4. Explain whether your answer to part (c) is likely to be reliable.
AQA Paper 2 2019 June Q9
2 marks
9
  1. Show that the first two terms of the binomial expansion of \(\sqrt { 4 - 2 x ^ { 2 } }\) are $$2 - \frac { x ^ { 2 } } { 2 }$$ 9
  2. State the range of values of \(x\) for which the expansion found in part (a) is valid.
    [0pt] [2 marks]
    9
  3. Hence, find an approximation for $$\int _ { 0 } ^ { 0.4 } \sqrt { \cos x } \mathrm {~d} x$$ giving your answer to five decimal places.
    Fully justify your answer.
    9
  4. A student decides to use this method to find an approximation for $$\int _ { 0 } ^ { 1.4 } \sqrt { \cos x } \mathrm {~d} x$$ Explain why this may not be a suitable method.
AQA Paper 2 2019 June Q10
10 The diagram below shows a velocity-time graph for a particle moving with velocity \(v \mathrm {~m} \mathrm {~s} ^ { - 1 }\) at time \(t\) seconds.
\includegraphics[max width=\textwidth, alt={}, center]{838f0625-95e6-4ad4-b97b-3d3f77cc7f19-16_684_1653_847_182} Which statement is correct? Tick ( \(\checkmark\) ) one box. The particle was stationary for \(9 \leq t \leq 12\) □ The particle was decelerating for \(12 \leq t \leq 20\) □ The particle had a displacement of zero when \(t = 6\) □ The particle's speed when \(t = 4\) was \(- 12 \mathrm {~ms} ^ { - 1 }\) □
AQA Paper 2 2019 June Q11
11 A wooden crate rests on a rough horizontal surface.
The coefficient of friction between the crate and the surface is 0.6 A forward force acts on the crate, parallel to the surface.
When this force is 600 N , the crate is on the point of moving.
Find the weight of the crate.
Circle your answer. \(1000 \mathrm {~N} 360 \mathrm {~N} \quad 100 \mathrm {~kg} \quad 36 \mathrm {~kg}\)
AQA Paper 2 2019 June Q12
12 A particle, under the action of two constant forces, is moving across a perfectly smooth horizontal surface at a constant speed of \(10 \mathrm {~m} \mathrm {~s} ^ { - 1 }\) The first force acting on the particle is \(( 400 \mathbf { i } + 180 \mathbf { j } ) \mathbf { N }\).
The second force acting on the particle is \(( p \mathbf { i } - 180 \mathbf { j } ) \mathrm { N }\).
Find the value of \(p\).
Circle your answer. \(- 400 - 390390400\)
AQA Paper 2 2019 June Q13
13 In a school experiment, a particle, of mass \(m\) kilograms, is released from rest at a point \(h\) metres above the ground. At the instant it reaches the ground, the particle has velocity \(v \mathrm {~m} \mathrm {~s} ^ { - 1 }\)
13
  1. Show that $$v = \sqrt { 2 g h }$$ 13
  2. A student correctly used \(h = 18\) and measured \(v\) as 20
    The student's teacher claims that the machine measuring the velocity must have been faulty. Determine if the teacher's claim is correct. Fully justify your answer.
    \includegraphics[max width=\textwidth, alt={}, center]{838f0625-95e6-4ad4-b97b-3d3f77cc7f19-19_2488_1716_219_153}
AQA Paper 2 2019 June Q14
14 A metal rod, of mass \(m\) kilograms and length 20 cm , lies at rest on a horizontal shelf. end of the rod, \(B\), extends 6 cm beyond the edge of the shelf, \(A\), as shown in the The end of the rod, \(B\), extends 6 cm beyond the edge of the shelf, \(A\), as shown in the diagram below.
\includegraphics[max width=\textwidth, alt={}, center]{838f0625-95e6-4ad4-b97b-3d3f77cc7f19-20_337_757_488_639} 14
  1. The rod is in equilibrium when an object of mass 0.28 kilograms hangs from the midpoint of \(A B\). Show that \(m = 0.21\) 14
  2. The object of mass 0.28 kilograms is removed. A number, \(n\), of identical objects, each of mass 0.048 kg , are hung from the rod all at a distance of 1 cm from \(B\). Find the maximum value of \(n\) such that the rod remains horizontal.
    14
  3. State one assumption you have made about the rod.
AQA Paper 2 2019 June Q15
15 Four buoys on the surface of a large, calm lake are located at \(A , B , C\) and \(D\) with position vectors given by $$\overrightarrow { O A } = \left[ \begin{array} { l } 410
710 \end{array} \right] , \overrightarrow { O B } = \left[ \begin{array} { r } - 210
530 \end{array} \right] , \overrightarrow { O C } = \left[ \begin{array} { l } - 340
- 310 \end{array} \right] \text { and } \overrightarrow { O D } = \left[ \begin{array} { c } 590
- 40 \end{array} \right]$$ All values are in metres.
15
  1. Prove that the quadrilateral \(A B C D\) is a trapezium but not a parallelogram.
    15
  2. A speed boat travels directly from \(B\) to \(C\) at a constant speed in 50 seconds. Find the speed of the boat between \(B\) and \(C\).
AQA Paper 2 2019 June Q16
6 marks
16 An elite athlete runs in a straight line to complete a 100-metre race. During the race, the athlete's velocity, \(v \mathrm {~m} \mathrm {~s} ^ { - 1 }\), may be modelled by $$v = 11.71 - 11.68 \mathrm { e } ^ { - 0.9 t } - 0.03 \mathrm { e } ^ { 0.3 t }$$ where \(t\) is the time, in seconds, after the starting pistol is fired.
16
  1. Find the maximum value of \(v\), giving your answer to one decimal place.
    Fully justify your answer.
    16
  2. Find an expression for the distance run in terms of \(t\).
    [0pt] [6 marks]
    16
  3. The athlete's actual time for this race is 9.8 seconds. Comment on the accuracy of the model.
    \includegraphics[max width=\textwidth, alt={}, center]{838f0625-95e6-4ad4-b97b-3d3f77cc7f19-27_2488_1719_219_150}
AQA Paper 2 2019 June Q17
17 Lizzie is sat securely on a wooden sledge.
The combined mass of Lizzie and the sledge is \(M\) kilograms.
The sledge is being pulled forward in a straight line along a horizontal surface by means of a light inextensible rope, which is attached to the front of the sledge. This rope stays inclined at an acute angle \(\theta\) above the horizontal and remains taut as the sledge moves forward.
\includegraphics[max width=\textwidth, alt={}, center]{838f0625-95e6-4ad4-b97b-3d3f77cc7f19-28_282_786_726_756} The sledge remains in contact with the surface throughout.
The coefficient of friction between the sledge and the surface is \(\mu\) and there are no other resistance forces. Lizzie and the sledge move forward with constant acceleration, \(a \mathrm {~ms} ^ { - 2 }\)
The tension in the rope is a constant \(T\) Newtons.
17
  1. Show that $$T = \frac { M ( a + \mu g ) } { \cos \theta + \mu \sin \theta }$$ 17
  2. It is known that when \(M = 30 , \theta = 30 ^ { \circ }\), and \(T = 40\), the sledge remains at rest.
    Lizzie uses these values with the relationship formed in part (a) to find the value for \(\mu\) Explain why her value for \(\mu\) may be incorrect.
    \includegraphics[max width=\textwidth, alt={}, center]{838f0625-95e6-4ad4-b97b-3d3f77cc7f19-30_2488_1719_219_150}
    \includegraphics[max width=\textwidth, alt={}, center]{838f0625-95e6-4ad4-b97b-3d3f77cc7f19-31_2488_1719_219_150}
    \includegraphics[max width=\textwidth, alt={}, center]{838f0625-95e6-4ad4-b97b-3d3f77cc7f19-32_2496_1721_214_148}
AQA Paper 2 2020 June Q1
1 marks
1 Which one of these functions is decreasing for all real values of \(x\) ?
Circle your answer.
[0pt] [1 mark] $$\mathrm { f } ( x ) = \mathrm { e } ^ { x } \quad \mathrm { f } ( x ) = - \mathrm { e } ^ { 1 - x } \quad \mathrm { f } ( x ) = - \mathrm { e } ^ { x - 1 } \quad \mathrm { f } ( x ) = - \mathrm { e } ^ { - x }$$
AQA Paper 2 2020 June Q2
1 marks
2 Which one of the following equations has no real solutions?
Tick ( \(\checkmark\) ) one box.
[0pt] [1 mark] $$\begin{aligned} & \cot x = 0
& \ln x = 0
& | x + 1 | = 0
& \sec x = 0 \end{aligned}$$ □


AQA Paper 2 2020 June Q3
3 Find the coefficient of \(x ^ { 2 }\) in the binomial expansion of \(\left( 2 x - \frac { 3 } { x } \right) ^ { 8 }\)
AQA Paper 2 2020 June Q4
4 Using small angle approximations, show that for small, non-zero, values of \(x\) $$\frac { x \tan 5 x } { \cos 4 x - 1 } \approx A$$ where \(A\) is a constant to be determined.
\includegraphics[max width=\textwidth, alt={}, center]{27339c29-c4a1-480c-b882-930f8dacc7af-05_2488_1716_219_153}
AQA Paper 2 2020 June Q5
6 marks
5 Use integration by substitution to show that $$\int _ { - \frac { 1 } { 4 } } ^ { 6 } x \sqrt { 4 x + 1 } \mathrm {~d} x = \frac { 875 } { 12 }$$ Fully justify your answer.
[0pt] [6 marks]
AQA Paper 2 2020 June Q6
6 The line \(L\) has equation $$5 y + 12 x = 298$$ A circle, \(C\), has centre \(( 7,9 )\)
\(L\) is a tangent to \(C\).
6
  1. Find the coordinates of the point of intersection of \(L\) and \(C\).
    Fully justify your answer.
  2. Find the equation of \(C\). 6
  3. Find the equation of \(C\).
    \(7 \quad a\) and \(b\) are two positive irrational numbers. The sum of \(a\) and \(b\) is rational. The product of \(a\) and \(b\) is rational.
    Caroline is trying to prove \(\frac { 1 } { a } + \frac { 1 } { b }\) is rational.
    Here is her proof:
    Step \(1 \quad \frac { 1 } { a } + \frac { 1 } { b } = \frac { 2 } { a + b }\)
    Step 22 is rational and \(a + b\) is non-zero and rational.
    Step 3 Therefore \(\frac { 2 } { a + b }\) is rational.
    Step 4 Hence \(\frac { 1 } { a } + \frac { 1 } { b }\) is rational.
AQA Paper 2 2020 June Q7
4 marks
7
    1. Identify Caroline's mistake.
      7
  1. (ii) Write down a correct version of the proof.
    7
  2. Prove by contradiction that the difference of any rational number and any irrational number is irrational.
    [4 marks] \(\_\_\_\_\) \(\_\_\_\_\) \(\_\_\_\_\) \(\_\_\_\_\) \(\_\_\_\_\) \(\_\_\_\_\) \(\_\_\_\_\) \(\_\_\_\_\) \(\_\_\_\_\) \(\_\_\_\_\) \(\_\_\_\_\) \(\_\_\_\_\) \(\_\_\_\_\) \(\_\_\_\_\) \(\_\_\_\_\) \(\_\_\_\_\) \(\_\_\_\_\) \(\_\_\_\_\) \(\_\_\_\_\) \(\_\_\_\_\) \(\_\_\_\_\) \(\_\_\_\_\) \(\_\_\_\_\) \(\_\_\_\_\) \(\_\_\_\_\)
    \includegraphics[max width=\textwidth, alt={}]{27339c29-c4a1-480c-b882-930f8dacc7af-12_2492_1722_217_150}