kveton (ajk643) – hw5 – morrison – (60620)
1
This
printout
should
have
20
questions.
Multiplechoice questions may continue on
the next column or page – find all choices
before answering.
001
10.0 points
A lunar vehicle is tested on Earth at a speed
of 10 km/h.
When it travels this fast on the moon, how
does its momentum compare to the momen
tum on Earth?
1.
the same as on Earth
2.
less than on Earth
3.
greater than on Earth
4.
None of these
002
10.0 points
When an apple falls from a tree and strikes
the ground without bouncing, what happens
to its momentum?
1.
The momentum of the falling apple is
transferred to the Earth.
2.
The momentum of the apple while falling
is increasingly smaller.
3.
The speed of the apple is equal and oppo
site to the speed of the Earth.
4.
The momentum of the apple after striking
the ground is reversed.
003
(part 1 of 2) 10.0 points
Two 1 kg balls move away from each other,
one traveling 1 m
/
s to the right, the other
2 m
/
s to the left.
What is the magnitude of the total mo
mentum of the system?
Answer in units of
kg
·
m
/
s.
004
(part 2 of 2) 10.0 points
Two 900 kg cars drive east; the first moving
at 30 m
/
s, the second at 15 m
/
s.
What is the magnitude of the total mo
mentum of the system?
Answer in units of
kg
·
m
/
s.
005
10.0 points
What velocity must a car with a mass of
1220 kg have in order to have the same mo
mentum as a 2220 kg pickup truck traveling
at 29 m
/
s to the east?
Answer in units of
m
/
s.
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 Fall '08
 FISCHLER
 Physics, Mass, Momentum, m/s, 0.4 kg, 7.03 kg

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