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WorksheetsStudent TEST Motion in 2 dimensions
Total questions: 18
Worksheet time: 3hrs 37mins
Name
Class
Date
1.
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.
a)
13.54 m at 84.6° north of east
b)
10.17 m at 18. 7° north of east
c)
13.34 m at 84.6° north of east
d)
3 m at 30° north of east
2.
If you ride the bus to school and then ride it home which is greater?
a)
displacement
b)
distance
c)
no enough information
d)
the moon is the biggest
3.
A 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?
a)
10.3 sec.
83.1 meters
83.1 meters
b)
8.90 sec.
70 meters
70 meters
c)
9.85 sec.
78.5 meters
78.5 meters
d)
20.0 sec.
160 meters
160 meters
4.
A 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.
a)
40.27 s
b)
90.15 s
c)
2 s
d)
80.54 s
5.
A 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.
a)
he dose not move
b)
16.07 at 35 degrees north of west
c)
16.58m at 33.9 degrees north of west
d)
not enough information
6.
You 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?
a)
The dropped ball
b)
Both land at the same time
c)
The thrown ball
d)
trick question. Neither ball landed because it was a dream!
7.
A 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.
a)
25 m/s @ 37 deg. North of West
b)
25 m/s @ 37 deg. West of North
c)
25 m/s @ 37 deg. North of East
d)
12 m/s @ 9 deg. South of East
8.
Vector 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.
a)
1 unit at 1° north of south
b)
4 units at 65° south of east
c)
3.5 units at 25° south of west
d)
3 units at 65° south of west
9.
You 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?
a)
Distance: 160 m; Displacement: 10 m
b)
Distance: 140 cm; Displacement: 0 m
c)
Distance: 12 m; Displacement: 140 m
d)
Distance: 140 m; Displacement: 0 m
10.
Nick 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?
a)
11978.3 m
b)
5021.2 m
c)
cats
d)
27727.3 m
11.
What is law of cosines?
a)
CosA/a = CosB/b = CosC/c
b)
c^2 = a^2 + b^2 - 2ab(cosC)
c)
a^2 + b^2 = c^2
d)
Cosine = Cosine
12.
Which of the following is not a vector?
a)
4 m south
b)
97 miles per hour northeast
c)
14 gallons
d)
the guy from despicable me
13.
How 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.
a)
1.31s
b)
2.62s
c)
1.23
d)
it would not fall at all the rock is to light
14.
A 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.
a)
60s
b)
3.5s
c)
6.08s
d)
It never hits the ground it hits the road
15.
How high is a cliff if a rock falls from half way up the cliff and the rock hits a river below 20s later?
a)
1960 meters
b)
15680 ft
c)
2.44 miles
d)
how could you hear that sound from so far away
16.
A 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?
a)
71s
b)
75s
c)
44.4s
d)
the boat dose not ever move
17.
If 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?
a)
80 m at 80 degrees nor
b)
67 m at 42.7 degrees west of south
c)
63.8 m at 48.2 degrees west of south
d)
56 m at 50.1 degrees west of south
18.
A 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.
a)
5.5 sec
b)
18 sec
c)
7.0 sec
d)
6.1 sec
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