A toy railroad car moves back and forth along a horizontal track for 5 seconds. There is a model train station positioned along the track. At the end of the 5 seconds, the car finishes up 5 cm to the right of the train station. The velocity function (in centimeters per second) of the railroad car is given by: v(T)={ 3t^2−12t+9 for 0≤t≤3 6t−18 for 3≤t≤5 At what time(s) does the car come to a rest? During what interval(s) of time is the car moving to the right? During what interval(s) of time is the car speeding up?
A toy railroad car moves back and forth along a horizontal track for 5 seconds. There is a model train station positioned along the track. At the end of the 5 seconds, the car finishes up 5 cm to the right of the train station. The velocity function (in centimeters per second) of the railroad car is given by: v(T)={ 3t^2−12t+9 for 0≤t≤3 6t−18 for 3≤t≤5 At what time(s) does the car come to a rest? During what interval(s) of time is the car moving to the right? During what interval(s) of time is the car speeding up?
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A toy railroad car moves back and forth along a horizontal track for 5 seconds. There is a model train station positioned along the track. At the end of the 5 seconds, the car finishes up 5 cm to the right of the train station. The velocity function (in centimeters per second) of the railroad car is given by:
v(T)={ 3t^2−12t+9 for 0≤t≤3
6t−18 for 3≤t≤5
- At what time(s) does the car come to a rest?
- During what interval(s) of time is the car moving to the right?
- During what interval(s) of time is the car speeding up?
- What is the position of the car after 3 seconds, relative to where it started?
- What is the net displacement of the car between 1 second and 4 seconds?
- What is the total distance traveled by the car during the 5 seconds?
- Where was the car initially relative to the train station?
- When does the car reach its furthest position to the right, and at that instant of time, how far to the right of the train station is the car?
- How many times does the car pass the train station?
- Is the velocity function continuous at t=3?
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