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Get the Formative Assessment: FA02.3.pdf
This assessment covers the following video flips:
2E. Solve displacement problems with acceleration.
The Formative Assessment Solved:
1. A car has an acceleration of 1.20 m/s/s for 3.50 seconds, at the end of which it is going 24.0 m/s. What was its initial velocity?
(19.8 m/s)
2. A car moves 214 m with an acceleration of 4.80 m/s/s in 6.00 seconds. What was its final velocity?
(50.1 m/s)
3. A dragster starts from rest and moves 180. m in 4.30 seconds. What is its acceleration?
(19.5 m/s/s)
4. A bike coasts from 12.5 m/s to rest in a distance of 27.2 m. What is its acceleration?
(-2.87 m/s/s)
5. An airplane coasts with a uniform acceleration from 92.5 m/s to rest over a distance of 624 m. What was its velocity when it had covered only 200. meters
(76.2 m/s)
Help on the Quizlette:
One Part:
1. A car going 11.0 m/s accelerates at 0.890 m/s/s for 15.0 s. How far does it go in this time? Solution
2. A runner accelerates from rest at 3.40 m/s/s to a final velocity of 9.40 m/s. What distance do they go? Solution
3. A tennis ball cannon rolls to a stop covering a distance of 3.80 m in 7.20 s. What was its initial velocity? Solution
4. What is the acceleration of a car that accelerates from 17.0 m/s to 11.0 m/s in 3.40 s? Solution
5. An accident scene investigator determines by measuring skid marks, that a car strikes a parked car at 8.20 m/s after having decelerated at -9.60 m/s/s for a distance of 17.0 m. What was the initial velocity of the car? Solution
6. A car covers 113 m accelerating at 0.640 m/s/s for 14.0 s. What was its initial velocity? Solution
7. A racecar is going 34.0 m/s after decelerating for 242 m for 4.50 s. What was its deceleration? Solution
8. A car going 20.0 m/s accelerates at 0.920 m/s/s. What time does it take to cover 123 m? Solution
Two Part:
1. An airplane reaches a speed of 52.0 m/s from rest on a runway that is 890. m long. What is its speed when it has gone only 100. m down the runway? Solution
2. A car reaches a speed of 27.0 m/s from rest in 6.20 s. What distance did it travel as it accelerated from 18.0 m/s to 24.0 m/s? Solution
More Practice Problems: (Get the handout here: Worksheet-2.3-HowFar.docx)
How Far for A2.3
Regular one step or two step problems:
1. A Pirate Ship accelerates uniformly from 1.80 m/s to 5.60 m/s with an acceleration of 1.25 m/s/s. What was its displacement? 2:12 A2 3 Practice#1
2. A lemur going 3.45 m/s accelerates at 1.52 m/s/s for 3.18 s. What is its final velocity? 1:29 A2 3 Practice#2
3. A giant lizard stops in 5.85 m in 1.15 s. What was its acceleration? 3:37 A2 3 Practice#3
4. A tuna going 2.35 m/s accelerates at 0.208 m/s/s covering a distance of 45.0 m. What time did it take? 9:37 E A2 3 Practice#4
5. A lemming speeds up from rest to 5.19 m/s in 2.80 s. What is its displacement during this time? 1:23 A2 3 Practice#5
6. An accident scene detective knows that a car with a deceleration of -7.14 m/s/s was brought to rest in 32.8 m. What was the initial velocity? 2:25 E A2 3 Practice#6
7. What is the acceleration of an ATV that goes from 12.0 m/s to 7.50 m/s in 3.68 s? 1:41 A2 3 Practice#7
8. A XC runner accelerates uniformly for 8.20 s at 0.540 m/s/s having a final velocity of 7.32 m/s. What is their displacement during this time? 3:46 A2 3 Practice#8
9. A racecar accelerates at 5.13 m/s/s for 3.35 s covering a distance of 105 m. What was its initial velocity? 2:42 E A2 3 Practice#9
10. A car avoiding an accident is brought to rest over a distance of 56.0 m in 5.12 s. What was its initial velocity? 2:04 A2 3 Practice#10
11. A baseball going 38.0 m/s decelerates to rest over a distance of 0.154 m. What was its deceleration? (It's big) 1:58 A2 3 Practice#11
12. A car goes from 27.2 m/s to 14.7 m/s in 6.23 s. What is its acceleration? 1:17 A2 3 Practice#12
13. A train going 45.0 m/s decelerates at -2.17 m/s/s for 17.9 s. What is its displacement during this time? 1:54 A2 3 Practice#13
14. A hamster going 2.7 m/s accelerates uniformly for 6.52 s, covering a distance of 23.0 m. What was its final velocity? (it's riding a hamster scooter) 2:45 A2 3 Practice#14
15. A car is going 15.0 m/s after having decelerated at -6.25 m/s/s over a distance of 52.0 m. What time did it take? 3:28 E A2 3 Practice#15
16. A hot pocket accelerating at -9.81 m/s/s from rest falls downward -32.1 m. What is the final velocity? Solution
17. A car accelerates uniformly for 8.70 s with a final velocity of 31.5 m/s over a distance of 216 m. What was its initial velocity? Solution
18. A car that can brake at -8.92 m/s/s will take what time to decelerate from 33.1 m/s to 11.8 m/s? Solution
19. A rollercoaster car going 8.60 m/s decelerates at -0.215 m/s/s for 11.0 s. What was its displacement during this time? Solution
20. A space probe is going 615 m/s after having decelerated at -0.147 m/s/s over a distance of 29,100 m. What time did it take? Solution
Two Part Kinematics:
21. A dragon accelerates from 1.13 m/s to 3.60 m/s in 4.13 seconds. Over what distance could it accelerate from rest to 6.85 m/s if it had the same acceleration? 4:31 A2 3 Practice#21
22. A car accelerates uniformly from rest, covering 65.0 m in 5.62 seconds. What time would it take the same car to go from 8.90 m/s to 29.4 m/s if it had the same acceleration? 3:42 A2 3 Practice#22
23. A runner covers 21.5 m accelerating uniformly from rest to 9.94 m/s. What was their speed when they had covered only 13.0 m? 3:12 A2 3 Practice#23
24. A train decelerates from 35.0 m/s to 22.0 m/s in 42.0 seconds. What time did it take it to cover 98.0 meters from the beginning? 6:30 A2 3 Practice#24
25. A car accelerates from rest to 23.0 m/s over a distance of 231 m. What time would it take it to accelerate from rest to 20.0 m/s if it accelerated at the same rate? 2:46 A2 3 Practice#25
The Instruction for this unit:
How Far Part I:
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