dang (d2965) – 1D motion – mostarshed – (338A1)
1
This printout should have 40 questions.
Multiplechoice questions may continue on
the next column or page – fnd all choices
beFore answering.
001
10.0 points
An object is released From rest on a planet
that has no atmosphere.
The object Falls
Freely For 3 m in the frst second.
What is the magnitude oF the acceleration
due to gravity on the planet?
1.
6
.
0 m
/
s
2
2.
3
.
0 m
/
s
2
3.
1
.
5 m
/
s
2
4.
10
.
0 m
/
s
2
5.
12
.
0 m
/
s
2
002
(part 1 oF 2) 10.0 points
A ball is dropped From the top oF a tall build
ing oF height
h
= 50 m
.
About how long does it take For the ball to
hit the ground? (Neglect air resistance.)
1.
2.4 s
2.
5.2 s
3.
10 s
4.
3.1 s
5.
1 s
003
(part 2 oF 2) 10.0 points
IF the ball has lost halF the magnitude oF its
impact momentum immediately aFter it re
coils, to what height does the ball reach aFter
its frst rebound?
1.
h
3
2.
h
2
3.
h
4
4.
h
5.
0
004
10.0 points
In the absence oF air Friction, an object
dropped near the surFace oF the Earth ex
periences a constant acceleration oF about 9.8
m/s
2
.
This means that the
1.
speed oF the object as it Falls is 9.8 m/s
2
.
2.
object Falls 9.8 meters during the frst
second only.
3.
derivative oF the distance with respect to
time For the object equals 9.8 m/s
2
.
4.
speed oF the object increases 9.8 m/s
2
during each second.
5.
object Falls 9.8 meters during each sec
ond.
005
10.0 points
An object is shot vertically upward into the
air with a positive initial velocity.
What correctly describes the velocity and
acceleration oF the object at its maximum
elevation?
Velocity
Acceleration
1.
positive
negative
2.
negative
negative
3.
zero
negative
4.
positive
positive
5.
zero
zero
006
10.0 points
A 500kilogram sports car accelerates uni
Formly From rest, reaching a speed oF 30 me
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View Full Documentdang (d2965) – 1D motion – mostarshed – (338A1)
2
ters per second in 6 seconds.
What distance has the car traveled during
the 6 seconds?
1.
30 m
2.
90 m
3.
60 m
4.
15 m
5.
180 m
007
10.0 points
The graph shows the velocity
v
as a function
of time
t
for an object moving in a straight
line.
t
v
0
t
Q
t
R
t
S
t
P
Which graph shows the corresponding dis
placement
x
as a function of time
t
for the
same time interval?
1.
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 Spring '10
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 Physics, Acceleration, Velocity

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