Questions and Answers
What was Terrell’s speed for the first 120 seconds of the workout?
4.2 m/s
What was Terrell’s speed for the entire 1700 meters?
4.7 m/s
Did Terrell complete the segment between 0 and 210 seconds at a constant speed?
False
During which of the following segments was Terrell taking a break?
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What is the car's average speed for the entire four hours of the trip?
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What was Sarah's acceleration during her speed increase?
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What is the object's acceleration during the first 60 seconds of its motion?
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Between which time segment is the object not accelerating?
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During which time segment is the object accelerating at the greatest rate?
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Which statement correctly describes Marisol’s motion?
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Which of the following best represents the velocity of the moving bus?
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From which frame of reference is the person sitting on a train NOT moving?
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What is the average acceleration of the car during the first 5 seconds of motion?
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Which statement best describes the car’s acceleration from 6.0 to 8.0 seconds?
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What was Anna’s velocity when she increased from 0 m/sec?
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Study Notes
Terrell's Workout Analysis
- Terrell's speed for the first 120 seconds of his workout was calculated to be 4.2 m/s.
- Over the entire 1700 meters, Terrell's average speed was 4.7 m/s, determined by a total time of 360 seconds.
- Speed variations indicate that Terrell did not maintain a constant speed within the first 210 seconds, shown by changing slopes on the graph, including a stop from 30 to 60 seconds and acceleration from 180 to 210 seconds.
- Terrell was taking a break during the first option of the segment, from 0 to 60 seconds.
Car Trip Average Speed Calculation
- A car covered a total distance of 360 kilometers in four hours, which results in an average speed of 90 km/h.
Sarah's Cycling Acceleration
- Sarah increased her speed from 4 m/s to 10 m/s in 3 seconds, achieving an acceleration of 2 m/s².
Object's Acceleration Analysis
- The object's acceleration for the first 60 seconds of motion was calculated as 3.333 m/s².
- The object experienced no acceleration between 60 to 90 seconds, indicated by a flat line on the graph.
- The greatest acceleration occurred within the time segment of 0 to 30 seconds.
Marisol on the Bus
- Marisol is moving relative to both the traffic light and the bus, but stationary relative to the bus driver.
- The velocity of the moving bus is best represented as 40 m/s East.
Train Movement Reference Frame
- From the perspective of the ground, a person in a train moving at 100 km/h is not in motion.
Car Average Acceleration
- During the first 5 seconds, the average acceleration of the car is 5 m/s² south.
- Between 6.0 to 8.0 seconds, the car's acceleration is characterized as changing direction rather than increasing or decreasing speed.
Anna's Running Performance
- Anna increased her velocity from 0 m/s to 5 m/s in 3 seconds at the start of her 100 meter dash, showcasing effective initial acceleration.
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Description
This quiz explores concepts related to speed and acceleration in various scenarios, including Terrell's workout, a car trip, and Sarah's cycling. Analyze how speed varies in different segments and calculate average speeds and acceleration. Test your knowledge on the principles of motion and their practical applications.
