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Questions and Answers
When did the car change direction based on the provided information?
Which of the following options describes where the car might have changed direction?
Which component label indicates a negative value for the average velocity?
In which scenario did Felipe and Samara move in the same direction according to the options provided?
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Which label indicates both velocity components are zero?
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Which of the following motion diagrams shows a car accelerating while moving in the positive direction?
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What does the negative sign in vav,x or vav,y represent?
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At which points were Felipe and Samara identified to have conflicting directions?
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In a position-versus-time graph, how is negative velocity represented?
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If the velocity of a car is constant, what can be inferred about the acceleration?
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Which option correctly describes both components as positive?
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During which segment of the velocity-versus-time graph does the car experience uniform motion?
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What conclusion can be drawn if the velocity graph shows a negative slope?
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Which of the following best describes the motion of the car if the velocity graph shows a horizontal line?
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If a car changed direction at 2.5 seconds on the velocity graph, what would this imply?
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Which type of graph best illustrates the relationship between position and time in uniformly accelerated motion?
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What is the train's velocity at 5 seconds based on the provided graph?
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What is the minimum constant deceleration required for the airplane to stop on a 2500-meter runway, assuming it lands at 140 m/s?
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Which of the following best describes the relationship between position and time in the graph provided for the train at 5 seconds?
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What would happen to the airplane's stopping distance if the deceleration was reduced?
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In the context of the car's curved trajectory, what does the displacement vector represent?
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What factor contributes most significantly to the average velocity being less than the constant speed of the cat in its path from A to B?
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If the train were to continue moving at the same velocity after 5 seconds, how would its position be determined?
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Study Notes
Test Instructions
- Test consists of 10 questions.
- First 8 questions are multiple choice (10 points each).
- Questions 9 and 10 require written responses (total of 20 points).
- Use provided equation sheet; no other notes allowed.
- Incorrect multiple-choice answers receive zero points; partial credit for written responses is awarded based on work shown and correctness.
Motion Diagrams
- Determine motion based on given velocity and acceleration values with standard sign conventions.
- Identify correct position-versus-time graphs for provided motion diagrams.
Velocity and Time
- Analyze velocity-versus-time graphs to assess changes in direction.
- Recognize the time intervals when a car may change direction based on velocity readings.
Average Velocity Components
- Analyze vectors using standard conventions to label average velocity components as positive, negative, or zero.
Direction of Motion
- Identify points where two individuals (Felipe and Samara) are moving in the same direction.
- Understand relationships between trajectories and directions at specific points.
Velocity from Position-Time Graphs
- Interpret position versus time graphs to calculate instantaneous velocity at a given time.
Deceleration Calculations
- For an airplane landing on a 2500-meter runway at 140 m/s, determine the minimum constant deceleration needed to stop safely.
- Use applicable equations to calculate the required deceleration values.
Average Velocity of a Walking Cat
- For a cat walking from point A to B at a constant speed of 7 m/s, find the magnitude of its average velocity based on its trajectory.
Vector Representation
- For questions involving vectors, sketch and label the initial position vector, final position vector, and the displacement vector in a given coordinate system. Ensure arrowheads are clearly visible for each vector.
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Description
Prepare for your Physics 1230 Test 1 with this quiz designed for Fall 2023. Answer the questions based on your understanding of the material covered in class, using your equation sheet as needed. Make sure to check your answers before submitting your exam in full for evaluation.