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3. Consider three points in the path of a certain projectile as shown in the diagram at the right. What is the acceleration of the projectile at each of these points? Acceleration (m/s*) at Y +9.8 +9.8 -9.8 -9.8 -9.8 +9.8 -9.8 -9.8 -9.8 4. Our equations of motions for projectiles assume: A) the start point is x = 0 m and y = 0 m. B) the horizontal velocity is a constant. C) there is no friction due to air resistance. D) All of the above. %3! 5. The diagram at the right shows the trajectory of three artillery shells. Each was fired with the same initial speed. Which shell was in the air for the longest time? (Ignore air friction.) A A) Shell A. D) Shells A and C were in the air for equal time, which was longer than for shell B. B) Shell B. C) Shell C. 6. A projectile is fired into the air at some angle above the horizontal. The horizontal displacement of the projectile is measured against time in flight and the collected data is shown as a horizontal E 16t displacement versus time graph at the right. Based on this graph, the horizontal velocity of the projectile during this time interval is: A) constant. C) decreasing. B) increasing. D) equal to zero. 2 Time (s) 7. On the graph from question #6, draw the graph of Horizontal Displacement vs Time that would occur if air resistance was included. 8. List four assumptions that we make for our projectile motion equations to work. Horizontal Displacement (m)

3. Consider three points in the path of a certain projectile as shown in the diagram at the right. What is the acceleration of the projectile at each of these points? Acceleration (m/s*) at Y +9.8 +9.8 -9.8 -9.8 -9.8 +9.8 -9.8 -9.8 -9.8 4. Our equations of motions for projectiles assume: A) the start point is x = 0 m and y = 0 m. B) the horizontal velocity is a constant. C) there is no friction due to air resistance. D) All of the above. %3! 5. The diagram at the right shows the trajectory of three artillery shells. Each was fired with the same initial speed. Which shell was in the air for the longest time? (Ignore air friction.) A A) Shell A. D) Shells A and C were in the air for equal time, which was longer than for shell B. B) Shell B. C) Shell C. 6. A projectile is fired into the air at some angle above the horizontal. The horizontal displacement of the projectile is measured against time in flight and the collected data is shown as a horizontal E 16t displacement versus time graph at the right. Based on this graph, the horizontal velocity of the projectile during this time interval is: A) constant. C) decreasing. B) increasing. D) equal to zero. 2 Time (s) 7. On the graph from question #6, draw the graph of Horizontal Displacement vs Time that would occur if air resistance was included. 8. List four assumptions that we make for our projectile motion equations to work. Horizontal Displacement (m)

College Physics
College Physics
11th Edition
ISBN:9781305952300
Author:Raymond A. Serway, Chris Vuille
Publisher:Raymond A. Serway, Chris Vuille
Chapter1: Units, Trigonometry. And Vectors
Section: Chapter Questions
Problem 1CQ: Estimate the order of magnitude of the length, in meters, of each of the following; (a) a mouse, (b)...
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3. Consider three points in the path of a certain projectile as shown in the diagram at the right, What is the acceleration of the projectile at each of these points? Acceleration (m/s³) at X +9.8 Y A) B) C) D) -9.8 +9.8 +9.8 -9.8 -9.8 -9.8 -9.8 -9.8 4. Our equations of motions for projectiles assume: A) the start point is x = 0 m and y = 0 m. B) the horizontal velocity is a constant. C) there is no friction due to air resistance. D) All of the above. A 5. The diagram at the right shows the trajectory of three artillery shells. Each was fired with the same initial speed. Which shell was in the air for the longest time? (Ignore air friction.) A) Shell A. D) Shells A and C were in the air for equal time, which was longer than for shell B. B) Shell B. C) Shell C. 6. A projectile is fired into the air at some angle above the horizontal. The horizontal displacement of the projectile is measured against time in flight and the collected data is shown as a horizontal 3 16 displacement versus time graph at the right. Based on this graph, the horizontal velocity of the projectile during this time interval is: A) constant. C) decreasing. B) increasing. D) equal to zero. 0. 2 4 Time (s) 7. On the graph from question #6, draw the graph of Horizontal Displacement vs Time that would occur if air resistance was included. 8. List four assumptions that we make for our projectile motion equations to work. Horizontal Displacement (m)
Transcribed Image Text:3. Consider three points in the path of a certain projectile as shown in the diagram at the right, What is the acceleration of the projectile at each of these points? Acceleration (m/s³) at X +9.8 Y A) B) C) D) -9.8 +9.8 +9.8 -9.8 -9.8 -9.8 -9.8 -9.8 4. Our equations of motions for projectiles assume: A) the start point is x = 0 m and y = 0 m. B) the horizontal velocity is a constant. C) there is no friction due to air resistance. D) All of the above. A 5. The diagram at the right shows the trajectory of three artillery shells. Each was fired with the same initial speed. Which shell was in the air for the longest time? (Ignore air friction.) A) Shell A. D) Shells A and C were in the air for equal time, which was longer than for shell B. B) Shell B. C) Shell C. 6. A projectile is fired into the air at some angle above the horizontal. The horizontal displacement of the projectile is measured against time in flight and the collected data is shown as a horizontal 3 16 displacement versus time graph at the right. Based on this graph, the horizontal velocity of the projectile during this time interval is: A) constant. C) decreasing. B) increasing. D) equal to zero. 0. 2 4 Time (s) 7. On the graph from question #6, draw the graph of Horizontal Displacement vs Time that would occur if air resistance was included. 8. List four assumptions that we make for our projectile motion equations to work. Horizontal Displacement (m)
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