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A-Level Pearson Edexcel GCE AL Further Mathematics (9FM0) Paper 4C Further Mechanics 2 summer Exam Question Paper (AUTHENTIC MARKING SCHEME ATTACHED)£7.49
1/1/ A-Level Pearson Edexcel GCE
AL Further Mathematics (9FM0)
Paper 4C Further Mechanics 2 summer Exam Question Paper
(AUTHENTIC MARKING SCHEME ATTACHED)
*P72114A0132*
,1. Three particles of masses 2m, 3m and km are placed at the points with coordinates
(3a, 2a), (a, –4a) and (–3a, 4a) respectively.
– –
The centre of mass of the three particles lies at the point with coordinates ( , ).
x y
–
(a) (i) Find x in terms of a and k
(ii) –
Find y in terms of a and k
(4)
Given that the distance of the centre of mass of the three particles from the point (0, 0)
1
is a
3
(b) find the possible values of k
(2)
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(Total for Question 1 is 6 marks)
3
*P72114A0332* Turn over
, 2. A cyclist and her cycle have a combined mass of 60 kg. The cyclist is moving along a
straight horizontal road and is working at a constant rate of 200 W.
When she has travelled a distance x metres, her speed is v m s–1 and the magnitude of the
resistance to motion is 3v2 N.
dv 200 − 3v3
(a) Show that dx = 60v2
(4)
The distance travelled by the cyclist as her speed increases from 2 m s–1 to 4 m s–
1
is D metres.
(b) Find the exact value of D
(3)
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4
*P72114A0432*
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