Phys
298
Brown
Sample
Exam
2
(Multiple
Choice
part)
Name___________________________________
MULTIPLE
CHOICE.
Choose
the
one
alternative
that
best
completes
the
statement
or
answers
the
question.
1) If
you
jumped
out
of
a
plane,
you
would
begin
speeding
up
as
you
fall
downward.
Eventually,
due
to
air
resistance,
your
velocity
would
become
constant
with
time.
After
this
occurs,
the
magnitude
of
the
force
of
air
resistance
is
A) is
slightly
smaller
than
the
force
of
gravity
acting
on
you.
B) is
greater
than
the
force
of
gravity
acting
on
you.
C) equal
to
the
force
of
gravity
acting
on
you.
D) is
much
smaller
than
the
force
of
gravity
acting
on
you.
1)
2) One
vector
has
a
length
of
23
units,
and
another
a
length
of
12
units.
If
the
scalar
product
of
these
two
vectors
is
113,
what
is
the
angle
between
the
two
vectors?
2)
3) You
carry
a
7.0

kg
bag
of
groceries
1.2
m
above
the
ground
at
constant
velocity
across
a
2.3
m
room.
How
much
work
do
you
do
on
the
bag
in
the
process?
3)
4) Three
cars
(car
L,
car
M,
and
car
N)
are
moving
with
the
same
velocity,
and
slam
on
the
breaks.
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 Spring '08
 Morrison
 Force, Mass, Potential Energy, Average Power, wind resistance

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