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Unit Three Test Review

Unit Three Test Review. Good Luck!. Sketch a motion map of object A. x. B. A. t. Which object has a greater displacement at 3 seconds?. x. B. A. t. 3 s. Both objects have the same displacement. Which object has a greater acceleration and why?. x. B. A. t. 3 s.

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Unit Three Test Review

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  1. Unit Three Test Review Good Luck!

  2. Sketch a motion map of object A x B A t

  3. Which object has a greater displacement at 3 seconds? x B A t 3 s Both objects have the same displacement.

  4. Which object has a greater acceleration and why? x B A t 3 s Object A because it has a changing velocity.

  5. A car starts from rest and accelerates to 15 m/sec over a time of 10 seconds. Make a motion map!

  6. A car starts from rest and accelerates to 15 m/sec over a time of 10 seconds. Draw the velocity vs time graph! v t

  7. A car starts from rest and accelerates to 15 m/sec over a time of 10 seconds. Calculation the acceleration v Acceleration = 1.5 m/s/s t

  8. A car starts from rest and accelerates to 15 m/sec over a time of 10 seconds. How far does the car travel? v Displacement = 75 m t

  9. A train traveling at 30 m/sec slows to 10 m/sec in 10 seconds. It then travels at that speed for another 20 seconds. Make velocity vs. time graph for the motion. v (m/s) 30 20 10 t (sec) 5 10 15 20 25 30

  10. What is the acceleration of the train while it is slowing down? v (m/s) 30 20 10 t (sec) 5 10 15 20 25 30

  11. What is the displacement of the train during the 30 seconds it is in motion. Δx = Area = 400 m v (m/s) 30 20 10 t (sec) 5 10 15 20 25 30

  12. A train going 25 m/sec slams on its breaks and comes to a stop in 87 seconds. What is the acceleration of the train? a = - 0.29 m/s/s

  13. A train going 25 m/sec slams on its breaks and comes to a stop in 87 seconds. How far does it travel when coming to a stop? x = 1087.5 m

  14. An arrow is fired up with an initial velocity of 18 m/sec. What is the acceleration at the highest point? a = -9.8 m/s/s

  15. An arrow is fired up with an initial velocity of 18 m/sec. How high does the arrow fly? Xf = 16.5 m

  16. An arrow is fired up with an initial velocity of 18 m/sec. What is the total time the arrow is in the air. t = 3.68 sec

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