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- 1. Multiple Choice
A dog searching for a bone walks 5.40 m north, then 9.10 m at an angle 30.0° west of north, and finally 5.8 m east. Find the dog's resultant displacement vector, using analytical techniques.13.54 m at 84.6° north of east10.17 m at 18. 7° north of east13.34 m at 84.6° north of east3 m at 30° north of east - 2. Multiple ChoiceIf you ride the bus to school and then ride it home which is greater?displacementdistanceno enough informationthe moon is the biggest
- 3. Multiple ChoiceA duck swims across a river at a constant velocity of 4 m/s north. The current is going down stream at 8 m/s east. If the river is 40 meters across, how long will it take the duck to get to the other side? How far down stream is it?10.3 sec.
83.1 meters8.90 sec.
70 meters9.85 sec.
78.5 meters20.0 sec.
160 meters
- 4. Multiple ChoiceA cannon shoots a cannon ball off the ground at an angle 67° north of east with an initial velocity of 1400 feet per second. Find the time the cannon hits the ground.40.27 s90.15 s2 s80.54 s
- 5. Multiple ChoiceA detective is searching for a dead body. He walks 6m north and then walked 5m at a angle of 40 degrees north of east. He then walks 17m west. Find the detective's displacement vector.he dose not move16.07 at 35 degrees north of west16.58m at 33.9 degrees north of westnot enough information
- 6. Multiple ChoiceYou and your friend are both standing on a building while both holding a ball. Your friend drops the ball and you throw the ball horizontally. Which ball hits the ground first?The dropped ballBoth land at the same timeThe thrown balltrick question. Neither ball landed because it was a dream!
- 7. Multiple ChoiceA car enters an intersection at 20 m/s West where it collides with a truck heading North. The impact rotates the car 90 degrees and gives the car a speed of 15 m/s North. Determine the average velocity and direction if the car was in contact with the truck for 1.25 s.25 m/s @ 37 deg. North of West25 m/s @ 37 deg. West of North25 m/s @ 37 deg. North of East12 m/s @ 9 deg. South of East
- 8. Multiple ChoiceVector A is 5.00 units east, vector B is 8.5 units at an angle 60° west of north, vector C is 7 units at an angle 80° south of east. Find the displacement vector and angle using graphical methods.1 unit at 1° north of south4 units at 65° south of east3.5 units at 25° south of west3 units at 65° south of west
- 9. Multiple ChoiceYou travel 10 m N, then 20 m E, you wait 20 minutes, then go 40 m S, then 30 m W. You then go 30 m N, and finally you turn and go 10 m E. What's your total displacement and distance?Distance: 160 m; Displacement: 10 mDistance: 140 cm; Displacement: 0 mDistance: 12 m; Displacement: 140 mDistance: 140 m; Displacement: 0 m
- 10. Multiple ChoiceNick shines a laser at an airplane that is located 114° North of East. The laser travels a distance of 12345 meters. How high is the airplane in the air?11978.3 m5021.2 mcats27727.3 m
- 11. Multiple ChoiceWhat is law of cosines?CosA/a = CosB/b = CosC/cc^2 = a^2 + b^2 - 2ab(cosC)a^2 + b^2 = c^2Cosine = Cosine
- 12. Multiple ChoiceWhich of the following is not a vector?4 m south97 miles per hour northeast14 gallonsthe guy from despicable me
- 13. Multiple ChoiceHow long is a rock in the air if it is thrown off a 16m cliff. the rock is thrown 20m/s at a angle of 20 degrees north of east.1.31s2.62s1.23it would not fall at all the rock is to light
- 14. Multiple ChoiceA man stands at the edge of a building and throws a ball horizontally off the edge with a velocity of 20 m/s. The building is 60 meters above a horizontal road. How long till the ball hits the ground.60s3.5s6.08sIt never hits the ground it hits the road
- 15. Multiple ChoiceHow high is a cliff if a rock falls from half way up the cliff and the rock hits a river below 20s later?1960 meters15680 ft2.44 mileshow could you hear that sound from so far away
- 16. Multiple ChoiceA boat moves through the water of a rives at 12m/s relative to the water. The river is rushing at 3m/s downstream. How long dose it take the boat to take make a 400m trip going downstream and a 400m back upstream?71s75s44.4sthe boat dose not ever move
- 17. Multiple ChoiceIf a hawk flies 70 m due south then 55 m at 30 degrees north of west, how far did the hawk travel from the starting point?80 m at 80 degrees nor67 m at 42.7 degrees west of south63.8 m at 48.2 degrees west of south56 m at 50.1 degrees west of south
- 18. Multiple ChoiceA child chucks a melon strait into the air at 30 m/s. Ignoring air resistance, how long is the melon in flight before it hits the ground.5.5 sec18 sec7.0 sec6.1 sec
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