27. The following graph represents two objects A and B in a state of linear motion. Which one of the following statements is correct? na velocity/m s-¹ 40- 20 0 1 2 3 4 5 B -A -time/s

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Chapter1: Units, Trigonometry. And Vectors
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I cant do number 27.
14
25. A car which is initially at rest rolls down a A
smooth inclined plane as shown below.
Which of the speed-time graphs best represents
the motion of the car?
A speed
B speed
C speed
C
A friction
C weight
40
20-
time
26. A heavy-laden trolley in a supermarket is difficult
to start from rest and difficult to stop while it is
moving. This is due to its
B inertia
D
0
+time
1
1 2
0
D speed
27. The following graph represents two objects A
and B in a state of linear motion. Which one of
the following statements is correct?
velocity/m s-1
3
momentum
4 5
B
0
-A
time
time/s
time
B
A B overtakes A at the end of the third second.
B overtakes A at the end of the fifth
second.
In the first three seconds, the average
speed of B is greater than that of A.
D
In the first five seconds, the average speed
of B is greater than that of A.
( )
All About Physics: Multiple-Choice Questions Workout 'O' level
28. A car slides down an inclined surface PQ and
moves horizontally along QS. QR is a rough
surface whilst PQ and RS are frictionless.
Between which of the following points on
its path does the object move with constant
speed?
A P and Q
CR and Swole
A
C
29. On which of these slopes does the ball roll
down with increasing speed and decreasing
acceleration? (Neglect frictional forces)
v/m s
smooth surface
16.
rough surface smooth surface
R
ein a
S
89
30. The figure below shows the acceleration-time
graph of an object, moving towards the right.
a/m s-2
A
2
C v/m s¹
16
8:
8:
a
B Q and R
DQ and S
Which of the following curves correctly shows
the velocity-time graph of the object?
A
B
24 t/s
B
24 t/s
D
D
24
v/m s
16-
16
8
v/m s-1
-t/s
t/s
-t/s
Transcribed Image Text:14 25. A car which is initially at rest rolls down a A smooth inclined plane as shown below. Which of the speed-time graphs best represents the motion of the car? A speed B speed C speed C A friction C weight 40 20- time 26. A heavy-laden trolley in a supermarket is difficult to start from rest and difficult to stop while it is moving. This is due to its B inertia D 0 +time 1 1 2 0 D speed 27. The following graph represents two objects A and B in a state of linear motion. Which one of the following statements is correct? velocity/m s-1 3 momentum 4 5 B 0 -A time time/s time B A B overtakes A at the end of the third second. B overtakes A at the end of the fifth second. In the first three seconds, the average speed of B is greater than that of A. D In the first five seconds, the average speed of B is greater than that of A. ( ) All About Physics: Multiple-Choice Questions Workout 'O' level 28. A car slides down an inclined surface PQ and moves horizontally along QS. QR is a rough surface whilst PQ and RS are frictionless. Between which of the following points on its path does the object move with constant speed? A P and Q CR and Swole A C 29. On which of these slopes does the ball roll down with increasing speed and decreasing acceleration? (Neglect frictional forces) v/m s smooth surface 16. rough surface smooth surface R ein a S 89 30. The figure below shows the acceleration-time graph of an object, moving towards the right. a/m s-2 A 2 C v/m s¹ 16 8: 8: a B Q and R DQ and S Which of the following curves correctly shows the velocity-time graph of the object? A B 24 t/s B 24 t/s D D 24 v/m s 16- 16 8 v/m s-1 -t/s t/s -t/s
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