cameroon gce A level June 2023 pure maths with mechanics 1

cameroon gce A level June 2023 pure maths with mechanics 1

cameroon gce A level June 2023 pure maths with mechanics 1

A sphere of mass 2 kg collides directly with
another sphere of mass 8 kg. Both spheres are
moving in the same direction with speeds 3
and 1 ms-1 respectively. Given that the 2 kg
mass is brought to rest by the impact, the
coefficient of restitution between the spheres is
Taking # as 10 ms-2, the work done in lifting 8
blocks, each of weight 12 kg, from the floor onto
a shelf 2.8 m high is
45. 48.
ms-1
>>
A 2688 J
B 268.8 J
C 26.88 J
A 1 D 2.688 J
2
W
B 7 !
A car accelerates uniformly from a velocity of
10 ms-1 to 60 ms”1in 6 seconds on a straight
level road. The distance covered by the car is
49.
8 ‘.:,1!\’
C 4
7 /.> ,• > r
D 3 A 150 m
B 200 m
C 210 m
D 215 m
7
|i
The work done by a force F = (i + 2j + 3k) N
which moves its point of application from a point
P with position vector rP = (3i + 4 j + 5k)m to
another point Q with position vector
= (7i + 6j + 5k)m is
46.
Given that the events A and B are such that
P( A/ \ B ) = and P(F) =|, then P(A n 5) =
A 5
21
•
50.
A – 60 J 7
B 60 J
C -8 J
D 8 J
B 4
7
C 3
7
D 2
A car of mass 1200 kg moving with a speed of
12 ms-1 has its engine working at 54 kW up a
road inclined at an angle sin-1Q) to the
horizontal. The non-gravitational resistance to the
motion of the car is 300 N. Taking g as 10 ms-2,
the acceleration of the car is
47.
7
STOP
GO BACK AND CHECK YOUR WORK
A 2.5 ms-2
B 1.5 ms-2
C 3.5 ms-2
D 1.2 ms