please answer this. thankyou, WITH SOLUTION REFERENCE:… please answer this. thankyou, WITH SOLUTION REFERENCE: https://sg.docs.wps.com/l/sIB_Nstgy7sriigYImage transcription textWhat I Know Instructions: Write the letter of the correct answer on a separate sheet of Paper- 1. Jonathan competes in the 4DD—meter dash and ﬁnishes with a time of 64 seconds. If the track is a perfect oval, with the starting line and. ﬁnish line at the same point, and the runner’s average speed was 6.25 meters/second, what was the total distance travelled by Jonathan? A. 0 m B. 200 m C. 400 m D. 800 m 2. What is the acceleration of an object that moves from rest to a velocity of 22 m/s covering a distance of 20 m? A. 4.8 m/s” B. 7.2 this2 C. 9.6 m/s’-‘ D. 12.11111’32 3. What is being measured by the speedometer of a (21′? A. acceleration C. average velocity B. average speed D. instantaneous speed 2 4. A cheetah named Sarah has shattered the world record for the standing loo-meter dash, clocking a. time of 5.95 seconds. It beats the Olympian Usain Bolt’s world record of 9.53 seconds (Roof 2012]. What is the speed of Sarah? A. 16.6? m/s B. 16.69 rn/s C. 16.80m/s D. 16.94 m/s 5. An object was dropped from a height of 100 to, how long was it in the air before it hit the ground? A. 1.8 s B. 4.5 s C. 5.8 s D. 22.? s 6. An object accelerates from rest with a constant acceleration of 7.4 Iva/s”, what will be its velocity after 5.43? A. 24.1 m/s B. 25.94 m/s C. 36.1 this D. 39.96 m/s 7. Starting from rest, a horse runs and reaches a ﬁnal velocity of 9.6 meters per second in 2.0 seconds. What is its average acceleration? A. 4.8 m/s? B. 7.2 this? C. 9.6 m/s2 D. 12.0 m/s2 For questions 8- 10, refer to the displacement vs. time graph of a_. cart: o 10 20 so 40 so so 70 Us) 8. Which section of the graph shows a period when the cart’s instantaneous velocity is equal to its average velocity? A. b-c B. c-d C. d-e D. none 9. Which section of the graph shows a period when the cart is accelerating? A. a-b B. b-c C. c-d D. e-t’ 10.Which section of the graph shows a period when the cart is not moving? A. b-c B. c-d C. d-e D. e-f 11.Which of the followinggraphs represent an object having zero acceleration? . B. C. D. V V : v : v _ I -t :t 12.1f a stone is dropped from a building with a height of 41 :11, how many seconds will it take to hit the ground? Neglect air resistance. A. 2.68 s B. 2.79:; C. 2.89 s D. 2.98 s … Show moreImage transcription text4. A cheetah named Sarah has shattered the world record for the standing 100-meter dash, clocking a time of 5.95 seconds. It beats the Olympian Usain Bolt’s world record of 9.58 seconds (Roof 2012). What is the speed of Sarah? A. 16.67 m/s B. 16.69 m/s C. 16.80 m/s D. 16.94 m/s 5. An object was dropped from a height of 100 m, how long was it in the air before it hit the ground? A. 1.8 s B. 4.5 s C. 5.8 s D. 22.7 s 6. An object accelerates from rest with a constant acceleration of 7.4 m/s2, what will be its velocity after 5.4s? A. 24. 1 m/s B. 25.94 m/s C. 36. 1 m/s D. 39.96 m/s 7. Starting from rest, a horse runs and reaches a final velocity of 9.6 meters per second in 2.0 seconds. What is its average acceleration? A. 4.8 m/$2 B. 7.2 m/$2 C. 9.6 m/s2 D. 12.0 m/$2 For questions 8-10, refer to the displacement vs. time graph of a cart: 50 E 40 20 10 20 30 40 50 70 t ( s ) 8. Which section of the graph shows a period when the cart’s instantaneous velocity s equal to itsaverage velocity? A. b-c B. c-d C. d-e D. none 9. Which section of the graph shows a period when the cart is accelerating? A. a-b B. b-c C. c-d D. e-f 10. Which section of the graph shows a period when the cart is not moving? A. b-c B. c-d C. d-e D. e-f 11. Which of the following graphs represent an object having zero acceleration? 12. If a stone is dropped from a building with a height of 41 m, how many seconds will it take to hit the ground? Neglect air resistance. A. 2.68 s B. 2.79s C. 2.89 s D. 2.98 s 4 13. What is the shortest distance needed for an airplane to land safely if it touches the runway with a velocity of 360 km/h and decelerates at -10 m/s2? A. 330 m B. 420 m C. 500 m D. 648 m 14. Which of the following shows the graph of a car that is moving with decreasing velocity? B. 15. Which of the following statements is TRUE? A. Constant speed means the velocity is also constant. 3. Velocity is a scalar quantity while speed is a vector quantity. C. An objectaccelerates only when there is a change in direction. D. It is possible for an object to accelerate even at a constant speed. Position. Time. Distance. Displacement. Sneed…. Show more Science Physics PHYSICS 141

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