11. From the velocity-time graph construct the displacement-time and acceleration-time graphs Displacement acceleration Velocity (m/s [5]) 30 20 20 0 10- -20- 30 5 Velocity vs. Time 20 Time (s) 25 30 35
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- 1. QUE) Motion in one dimension (a)ims] How is the average speed of an object defined and what is the difference between speed and velocity? Explain any symbols that you use. (b) Expos] Give an example of a situation in which the average speed of an object is greater in than the magnitude of its average velocity. (c) [pos] The "2" subway train from Manhattan to Flatbush Avenue is approaching the final station (Flatbush Avenue) but has stopped on the tracks somewhere outside of Flatbush Avenue. The graph shows the train's velocity as a function of time, from the point just after it begins to move again, up to the point at which it comes to rest at the Flatbush Avenue station. The positive direction of velocity and displacement is from Manhattan to Flatbush Avenue along the track. Velocity in miles per hour 30 25 0 0 10 20 30 40 Time (seconds) 50 60 70 90 Give both the magnitude and sign of each of your numerical answers. (i) What is the train's acceleration from 0 to 10 seconds? And…3. An object moves in a straight line as described by the velocity-time graph in the plot below. Sketch a graph that represents the acceleration of the object as a function of time. 15 10 1 2 4 Time (s) Velocity (m/s)2. Use the following graph for parts a-b. Position Time Graph 11 10 B 0.4 0.8 1.2 1.6 2.4 2.8 3.2 3.6 4 4.4 4.8 5.2 5.6 Time (s) a) Calculate the velocity from point A to point B. Answer to two significant digits, and include direction (using a positive/negative x-axis). (2) b) Would you expect the velocity from point B to point C to be higher or lower than your answer from part a)? Explain. (2) 2 으98 7 6 54 3 2 1 Position (m)
- 6. Please help answer this question, thank you so much! :)H4.3. Refer to the position – time graph below then, answer questions a to e. 40 2 30 20 10 1 2 3 Time (seconds) b) Calculate the average velocity of the spri Displacement (A*):. Time (At): Average Velocity (vave): er. meter seconds m/s c) Calculate the average speed of the sprinter. Total Distance: meter Time: seconds Average Speed: m/s d) Is your calculated average velocity the same as the calculated average speed? e) Explain under what circumstance will the average velocity be the same as the average speed. f) Write at least 2 similarities and 2 differences between average speed and average velocity. Distance from starting line (meters)
- 1. In the given acceleration – time graph: DRAW THE VELOCITY – TIME, DISPLACEMENT – TIME GRAPH. TABULATE Solve by Area Method (m/*) 20 20 2 -40 - 70 a) Determine the acceleration per one second. b) Determine the velocity per one second if the initial velocity is V: = -50 m/s c) Determine the displacement per one second if the initial displacement is Sı = -150 m11. The following table depicts the motion of the mouse as it runs rightward across a street. Create a position-time graph and use your graph to derive the mouse's velocity. Time (s) 0 1 2 3 4 TABLE 1.2: Mouse velocity Position (m) 0 1 3 5 7complete explanation
- Science 24: Module 4 8 Assignment Booklet 4A (1 13. What does the run between two points on a distance/time graph represent? the responding variable B. average velocity C. the time interval D. distance travelled 14. The motion of a snail, a rocket, a car, and a baseball were each graphed on the same distance/time graph. The line with the least slope likely represents the motion of the A. snail B. rocket C. car D. baseball 15. A ticker tape machine recorded the motion of a dynamics cart. The dots were uniformly spaced on the tape. What does uniform spacing indicate? A. a changing velocity B. an object slowing down C. a constant velocity D. an object that has stopped Return to page 42 of the Student Module Booklet and begin Less11. A car has an initial speed of 20 m/s and an acceleration of -1m/s^2. Find the displacement ( m) after the first 10 seconds * O a) 12 m O b) 15 m O c) 42 m O d) 50. m O nota8. The tangent of a position time graph would yield: The average velocity of an object b. The instantaneous velocity of an object The velocity of an object over a small period of time d. The velocity of an object over a large period of time None of the above are true а. с. е.