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- 1. Multiple Choice
A car travels 90 meters due north in 15 seconds. Then the car turns around and travels 40 meters due south. What is the magnitude and direction of the car's resultant displacement?40 metres, South50 metres, South50 metres, North40 metres, North - 2. Multiple ChoiceWhich statement describes a vector?It has magnitude but no directionIt has direction but no magnitudeIt has both direction and magnitudeIt has constant magnitude but no
direction - 3. Multiple ChoiceIn practice A of the figure, What is the magnitude of the resultant displacement?5 km8 km11 km15 km
- 4. Multiple ChoiceIn practice A of the figure, what is the direction of the resultant displacement?63 degrees, South of East63 degrees, North of West27 degrees, North of West27 degrees, South of West
- 5. Multiple ChoiceIn practice B of the figure, which displacement is the horizontal component?30 km, East30 km, West40 km, North40 km, South
- 6. Multiple ChoiceIn practice B of the figure, which displacement is the vertical component?40 km, South40 km, North30 km, East30 km, West
- 7. Multiple ChoiceIs this a scalar quantity or a vector quantity?
Wind blowing at 20 knotsScalarVector - 8. Multiple ChoiceIs this a scalar quantity or a vector quantity?
A deer running 15 meters per second due westScalarVector - 9. Multiple ChoiceIf a boomerang is thrown 20 m in a straight line and returns exactly to the spot it was thrown what is its displacement?20m40m0m-20m
- 10. Multiple ChoiceWhat is the Net Force?5 N to the right10 N to the right15 N to the right0 N
- 11. Multiple ChoiceA car moved 60 km East and 90 km West. What is the distance it traveled?30 km, West60 km. East90 km150 km
- 12. Multiple ChoiceIf a car moves 12 km North, 19 km East, and 12 km South, what is its displacement?12 km19 km, East31 km43 km, East
- 13. Multiple ChoiceThe president’s airplane, Air Force One, flies at 250 m/s to the east with respect to the air. The air is moving at 35 m/s to the north with respect to the ground. Find the velocity of Air Force One with respect to the ground.252 m/s222 m/s435 m/s125 m/s
- 14. Multiple ChoiceA motorboat, which has a speed of 5 meters per second in still water, is headed east as it crosses a river flowing south at 3.3 meters per second. What is the magnitude of the boat’s resultant velocity with respect to the starting point?3.3 m/s5.0 m/s6.0 m/s8.3 m/s
- 15. Multiple ChoiceA person observes a fireworks display from a safe distance of 0.750 kilometer. Assuming that sound travels at 340 meters per second in air, what is the time between the person seeing and hearing a fireworks explosion?0.453 s2.21 s410 s255,000 s
- 16. Multiple ChoiceA child walks 5 meters north, then 4 meters east, and finally 2 meters south. What is the magnitude of the resultant displacement of the child after the entire walk?1.0 m5.0 m3.0 m11.0 m
- 17. Multiple ChoiceAn airplane traveling north at 220 meters per second encounters a 50.0-meters-per-second crosswind from west to east.170 m/s214 m/s226 m/s270 m/s
- 18. Multiple ChoiceA hiker walks 5 kilometers due north and then 7 kilometers due east.2 km8.6 km12 km12.6 km
- 19. Multiple ChoiceA fishing boat with a maximum speed of 3 m/s relative to the water is in a river that is flowing at 2 m/s. What is the maximum speed the boat can obtain relative to the shore?5 m/s25 m/s5.8 m/s7 m/s
- 20. Multiple ChoiceA fishing boat with a maximum speed of 3 m/s relative to the water is in a river that is flowing at 2 m/s. What is the minimum speed the boat can obtain relative to the shore?1 m/s5 m/s3.6 m/s4.5 m/s
- 21. Multiple ChoiceA motorboat velocity is 20 km/h in still water. If the boat must travel straight to the nearest shore in a river whose current is 12 km/h, What up stream angle must the bow boat point at? (hints: you know the opposite and resultant sides of your right triangle here).46 degrees upsteam37 degrees upstream22 degrees upstream42 degrees upstream
- 22. Multiple ChoiceA plane traveling north at 150 m/s is flying toward a runway. A cross-wind of 30 m/s begins to blow from the east. The pilot realizes he is being blown off course. At what angle must he head in order to travel directly north?19 degrees east of north29 degrees east of north19 degrees west of north29 degrees east of south
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