Below is a sketch of the situation described in this problem, along with four different motion diagrams. Which of these diagrams is the correct pictorial representation of the problem? оооо (a) (b) (c) (d) (a) (b) (c) (d) U U U See can a=0 a a=0 a=0 a Hit brakes a Stop o
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- Shown below is a velocity-time graph for an object being thrown up and falling back down. Velocity (m/s) B O O Point C O Point E O None of the points O Point D Point A Point B D E Which point shows the time where the object is at its maximum height? O You cannot say just from the graph Time (s)You qualitatively analyzed the motion of a van earlier. Now, using the example of the ball thrown into the air, you can do a more detailed analysis of the van's motion. The table shown here includes the time and position data, with one worked example for finding acceleration. Time Position Velocity Ad Acceleration t(s) (m/s) Ar (m/s") 0.0 0.0 6.0 2.0 12 +3.0 12 4.0 36 Sample Calculation Notice that the velocity that will be plotted at t = 1.0 s is the average velocity between t = 0.0 s and t 2.0 s. The velocity that will be plotted at t 3.0 s is the average velocity between t = 2.0 s and 4.0 s. The acceleration that will be plotted at t= 2.0 s is the average acceleration between t = 1.0 s and t = 3.0s. 6.0 48 8.0 96 10.0 142 12.0 190 14.0 226 16.0 250 Adgd-d 12 m-0.0 m 2.0 s-0.0 s V = 18.0 262 Alo2 t2-lo 12 m 2.0 s %3D Analyze and Conclude 1. How well do the average and instantaneous velocities that you calculated agree with = 6.0 m each other? 36 m-12 m V= Afz4 %3D %3D 2 Separate the…The following graph depicts the velocity of someone playing tag over a short period of time. Use this velocity graph to answer the following questions. The person's maximum magnitude for velocity is 4.5 m/s in both the positive and negative directions. A is at time point 3 seconds, B is at time point 4.5 seconds, C is at time point 5.5 seconds, D is at time point 7 seconds, E is at 8 seconds, F is at 9 seconds and G is at 10 seconds. What is the acceleration in meters/second2 (m/s2) at the 2 second mark of playing tag? What is the acceleration in meters/second2 (m/s2) at the 5 second mark? What is the velocity in meters/second (m/s) at the 5 second mark? What is the acceleration in meters/second2 (m/s2) at the 6.5 second mark? What is the acceleration in meters/second2 (m/s2) at the 8.5 second mark? What is the velocity in meters/second (m/s) at the 9.5 second mark?
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- At t=0 an object has a velocity of 35 m/s and a steady acceleration of -10 m/s2. Make a sketch of velocity vs. time for this motion from t=0 to t=5 s. Make a sketch of acceleration vs. time for this motion from t=0 to t=5 s. Does the object change directions between 0 and 6 s?an object has a velocity of (5.4 m/s)i - (5.8 m/s)j. over a period of 1.3 s, its velocity changes to (1.7 m/s)i + (5.9 m/s)j. What is the displacementthe attached graph that is shown is a position versus time graph. The vertical dashed lines divide the graph into five time intervals where the acceleration is constant within each interval. What is the acceleration at t=12.0 in m/s2?