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WorksheetsTwo Dimensional Motion
Total questions: 25
Worksheet time: 50mins
Name
Class
Date
1.
A man walks 30 meters South, 25 meters West, 50 meters North, and 15 meters East in 80 seconds. What was his displacement?
a)
35.4 meters NW
b)
22.4 meters SE
c)
119 meters
d)
22.4 meters NW
2.
A man walks 30 meters South, 25 meters West, 50 meters North, and 15 meters East in 80 seconds. What was his total distance?
a)
40 meters
b)
22.4 meters
c)
30 meters
d)
120 meters
3.
A man walks 30 meters South, 25 meters West, 50 meters North, and 15 meters East in 80 seconds. What was the average velocity that he traveled?
a)
0.44 m/s NW
b)
1.5 m/s SW
c)
1/5 m/s NW
d)
0.28 m/s NW
4.
The result of adding two vectors together is called the?
a)
independent vector
b)
resultant vector
c)
directional vector
d)
manipulated vector
5.
Which is an example of a vector quantity?
a)
distance
b)
velocity
c)
time
d)
speed
6.
A sailboat moves West across a river 1250 meters at 5 m/s. The boat encounters a current going South at 7 m/s. How long will it take for the boat to cross the river?
a)
250 seconds
b)
145 seconds
c)
1.4 seconds
d)
179 seconds
7.
A sailboat moves West across a river 1250 meters at 5 m/s. The boat encounters a current going South at 7 m/s. What is the resultant velocity of the sailboat?
a)
2.0 m/s Southwest
b)
8.6 m/s Southwest
c)
8.6 m/s Northwest
d)
12 m/s Southwest
8.
A motorboat with a speed of 5.0 meters per second in still water is headed East. The motorboat then comes to a river heading South with a speed of 3.3 meters per second. What is the boat's resulting velocity when the boat enters the flow of the river?
a)
3.3 m/s S
b)
5.0 m/s E
c)
6.0 m/s SE
d)
8.3 m/s SE
9.
A motorboat traveling 5 m/s East across a river encounters a current moving 3.5 m/s South. If it takes the boat 25 seconds to cross the river, how far downstream is the boat pushed by the current?
a)
125 m
b)
62.5 m
c)
139.8 m
d)
312.5 m
10.
A plane at a height of 400 m drops a skydiver and he lands 500 m from the drop point. How fast is the plane flying?
a)
143 m/s
b)
45 m/s
c)
6.25 m/s
d)
56 m/s
11.
At the instant a ball is thrown horizontally, an identical ball is dropped from the same height. Which ball hits the ground first? (no air resistance)
a)
the horizontally thrown ball
b)
they both hit the ground at the same time
c)
the dropped ball
12.
A student rolls a ball off a cliff that is 45 meters high with a horizontal velocity of 25 m/s. Neglecting air resistance, approximately how far from the base of the cliff does the ball hit the ground?
a)
3.02 m
b)
9.17 m
c)
75.7 m
d)
37.9 m
13.
The diagram represents the path of a car that is driven off a cliff. Neglecting air resistance, the horizontal component of the velocity at A is _______ the horizontal component of the velocity at B
a)
smaller than
b)
greater than
c)
the same as
d)
can not be determined
14.
How many seconds does the ball take to reach the ground?
a)
0.20 s
b)
2.25 s
c)
4.52 s
d)
5.00 s
15.
A projectile is launched horizontally at a speed of 30 m/s from a platform located a vertical distance "h" above the ground. The projectile strikes the ground after 2.5 s at horizontal distance "d" from tehbase of the platform (neglect friction). Calculate the horizontal distance traveled by the projectile, if the time of flight is 2.5 s.
a)
75.0 m
b)
30.6 m
c)
24.5 m
d)
12.0 m
16.
According to the picture, which points is the speed of the projectile the same?
a)
B and E
b)
A and E
c)
B and D
d)
Both A and E, B and D
17.
In the absence of air resistance, the angle at which a thrown ball will go the farthest is?
a)
60 degrees
b)
45 degrees
c)
15 degrees
d)
30 degrees
18.
If launched at the same speed, which projectiles shot at the angles below would travel the same distance?
a)
45 degrees and 15 degrees
b)
10 degrees and 60 degrees
c)
30 degrees and 40 degrees
d)
70 degrees and 20 degrees
19.
The cannon fires at 45 degrees with a set velocity. If the angle of the projectile is raised to 75 degrees, what would happen to the height and range of the projectile's path?
a)
The projectile would travel to a greater height and have a longer range.
b)
The projectile would travel to a lower height and have a smaller range.
c)
The projectile would travel to a greater height and have a smaller range.
d)
The projectile would travel to a greater height and have the same range.
20.
A ball is thrown straight upward at 20 m/s. With no air resistance, the ball will return to the thrower's hand with a speed of?
a)
20 m/s
b)
40 m/s
c)
80 m/s
d)
0 m/s
21.
Which graph represents the relationship between the gravitational acceleration of a falling body and the mass of the body in the absence of air resistance?
a)
a
b)
b
c)
c
d)
d
22.
A baseball is dropped from the roof of a tall building, it takes 3.1 seconds to hit the ground. How tall is the building?
a)
15 m
b)
47 m
c)
30 m
d)
94 m
23.
A man drops a hat from 7 meters. What is the speed of the hat when it hits the ground?
a)
5.9 m/s
b)
23.7 m/s
c)
7.0 m/s
d)
11.7 m/s
24.
April kicks a rock off a cliff and it lands in teh river below, 1.4 seconds later. How high up is the cliff from the river?
a)
9.6 meters
b)
7.1 meters
c)
13.72 meters
d)
70 meters
25.
The picture shows two objects that were dropped and recorded with a stroboscopic camera. The best explanation for the results is that object A
a)
has less air resistance
b)
was dropped from a greater height
c)
has a smaller mass
d)
accelerated more slowly
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