Linear motion 1

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Question 1 of 9

1. Question
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A car took 3 hours to travel from Kuala Lumpur to Ipoh. It moved with a speed of 80kmh^-1 for the first 2 hours and 100kmh^-1 for the last 1 hour. What is the average speed of the car for the journey in kmh^-1?
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Question 2 of 9

2. Question
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$\begin{array}{|l|l|l|l|l|l|} \hline \text { Time /s } & 0 & 1 & 2 & 3 & 4 \\ \hline \text { Velocity /ms-1 } & 0 & 1 & 3 & 6 & 10 \\ \hline \end{array}$

Table above shows the velocity of an object for the first 4 seconds of its motion. We can conclude that the object is moving with
- 1. I. uniform acceleration
- 2. II. increasing acceleration
- 3. III. increasing velocity
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Question 3 of 9

3. Question
1 point(s)
A car took 3 hours to travel from Kuala Lumpur to Ipoh. It moved with a speed of 80kmh^-1 for the first 2 hours and 100kmh^-1 for the last 1 hour. What is the average speed of the car for the journey in kmh^-1?
- 1. $90 kmh^{-1}$
- 2. $86.7 kmh^{-1}$
- 3. $60 kmh^{-1}$
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Question 4 of 9

4. Question
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Which of the following quantity must be changing if an object is moving at constant acceleration?
- 1. The velocity of the body
- 2. The direction of the body
- 3. The speed of the body
- 4. The acceleration of the body
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Question 5 of 9

5. Question
1 point(s)
A bus increases its velocity from 20 kmh^-1 to 92 kmh^-1 in 5s. What is the acceleration of the bus?
- 1. $4.0 ms^{-2}$
- 2. $14.4 ms ^{-2}$
- 3. $18.4 ms ^{-2}$
- 4. $8.0 ms ^{-2}$
- 5. $10.0 ms ^{-2}$
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Question 6 of 9

6. Question
1 point(s)
A car has moved 200m north in 5s and then 250m west in 10s. What was the velocity of the car?
- 1. $30.0 ms^{-1}$
- 2. $32.5 ms^{-1}$
- 3. $21.3 ms^{-1}$
- 4. $20.0 ms^{-1}$
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Question 7 of 9

7. Question
1 point(s)
An object accelerates from stationary with the acceleration of 4 ms^-2. What is the velocity of the object after 7s?
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Question 8 of 9

8. Question
1 point(s)
$\begin{array}{|l|c|c|c|c|c|} \hline \text { Time/s } & 0 & 1 & 2 & 3 & 4 \\ \hline \text { Velocity /ms-1 } & 10 & 9 & 7 & 4 & 0 \\ \hline \end{array}$

Table above shows the velocity of an object for the first 4 seconds of its motion. We can conclude that the object is moving with
- 1. I. uniform deceleration
- 2. II. decreasing deceleration
- 3. III. increasing deceleration
- 4. IV. decreasing velocity
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Question 9 of 9

9. Question
1 point(s)
An object accelerates from stationary with the acceleration of 4 ms-2. What is the velocity of the object after 7s?
- 1. $28 ms^{-1}$
- 2. $14 ms^{-1}$
- 3. $8 ms^{-1}$
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