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Quiz 5 Problem 1
Q
All 3 vector arithmetic problems correct
100
R
2 of 3 correct
70
E
At least 2 vectors have errors but errors are consistent. E.g. All
vectors are reversed, One of D, E, or F are drown incorrectly, but
consistently, such as D being
h
4
,
4
i
60
S
1 of 3 correct
40
T
none correct
0
Quiz 5 Problem 2 Are the initial momenta set up consistently
Y
Both Momenta are in the same direction and the astronaut’s mag
nitude is greater than the hammer’s; since his mass is certainly
greater and their velocities are the same
100
P
Both momenta are the same, which only happens in the dubious
case that the hammer has the same mass as the astronaut.
70
N
The hammer has incorrect momentum. E.g. more than the astro
naut, none or in diﬀerent direction than astronaut’s.
0
Quiz 5 Problem 2 Is momentum Conserved?
Y
Yes momentum is conserved, Δ
→
P
total
= 0
100
N
No momentum is not conserved,Δ
→
P
total
6
= 0
0
Quiz 5 Problem 2 Is the Chart consistent?
Y
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 Winter '08
 Taylor

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