Exercise2.1 Analysing linear motion2.2 Analysing motion graphs1. Ali rides a motorcycle with a constant speed 30kmh-1. Bakar runs at a distance 100m in 15s. Chan rides a bicycle at distance 240km in 10 hours. Which comparison is true?A. Speed of Ali= Speed of Bakar = Speed of ChanB. Speed of Ali Speed of BakarC. Speed of Ali = Speed of Chan Speed of BakarD. Speed of Bakar = Speed of Chan Speed of Ali2.

Based on the figure above, calculate the average velocity.A. 0.2 ms-1B. 0.4 ms-1C. 0.3 ms-1D. 0.5 ms-1

3. Based on the figure below, calculate the acceleration.

A. 5 ms-2B. 7 ms-2C. 8 ms-2D. 10 ms-24. The following figure shows a tape chart.

Based on figure, which of the following is true?At the beginning of motion At the end of motionA. Velocity unchanged acceleration increasesB. Velocity increases acceleration increasesC. Velocity increases acceleration unchangedD. Velocity unchanged acceleration unchanged

5. Which of the following shows an object moving with decreasing acceleration?

6. A rocket starts at velocity 2500 ms-1 and accelerates uniformly upwards at 20ms-2. What is the velocity of the rockets after 4 minutes?

7. A trolley starts from rest and is uniformly accelerated to speed of 12cms-1 in 5s. What is the distance travelled by the trolley?

8. An aeroplane accelerates at 40 ms-2 in 10s to take off. What is the minimum length of the runway on the airfield?

9. A lorry starts from rest and accelerated at 10ms-2. What is the velocity of the lorry after travels for a distance 20m?

10. A car moves with a velocity 40ms-1. After the brakes of the car is applied, it moves 100m more before coming to rest. Calculate the deceleration of the car.

11. A stone fall freely from rest through a height of 5m. What is the velocity of the stone when it hits the ground?

12. A coconut falls vertically to the ground. If the coconut takes 1.5s to fall to the ground, calculate the height from which it fell.

13. A metal sphere falls 125m vertically to the ground. What is the time the metal sphere takes to reach the ground?

14. The following figure shows a tape chart. The chart is produced by the motion of a trolley. The ticker timer used power supply 12V a.c. at 50 Hz.

(a) Describe the type of motion shown in the tape chart.___________________________________

(b) What is the time interval between two consecutive dots?___________________________________

(c) Calculate (i) Minimum velocity

(ii) Maximum velocity

(iii) Average velocity

(iv) Acceleration

15. The following figure shows s-t graph of an object.Based on the graph,(a) Calculate the velocity of the object between(i) AB

(ii) BC

(iii) CD(b) Describe the motion of the object between(i) AB

(ii) BC

(iii) CD

16. The following is a v-t graph of a car.

Based on the graph,(a) Calculate the acceleration of the car between(i) JK(ii) KL(iii) LM(iv) MP(b) State the type of motion of the car between (i) JK(ii) KL(iii) LM(iv) PN(c) Calculate the total displacement travelled of the car during(i) The first 10s of motion(ii) The car moves with uniform velocity(iii) The last 10s of motion(d) Calculate (i) the total displacement for the whole journey

(ii) total distance for the whole journey(e) Calculate(i) Average speed(ii) Average velocity17. An object moves with an uniform acceleration. Which of the following shows the motion of the object?

18. The graph shows how the velocity, v of an onject changes with time, t.

Which section of the graph shows the object moving with a decrreasing velocity?A. PQB. QRC. RSD. ST19. The graph shows how the velocity, v odf an object changes with time, t.

If the motion of the object is illustrated by dispalcement, s against time, t graph, which of the following is true?

20. The following figure shows the velocity, v against time, t.

Which of the following graphs is its corresponding acceleration, a against time, t graph?

21.

Based on the displacement-time graph above, what is the total displacement? A. 0mB. 10mC. 20mD. 50m22. Based on the v-t graph below, calculate the total distance travelled during the first 80s of motion.

A. 550mB. 640mC. 900mD. 1800m