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Ch2 HW4 f10 (Homework)
Ashlyn Baum
Physics 303K, section B, Fall 2010
Instructor: Jim Chelikowsky
Current Score :
14 / 15
Due :
Sunday, September 12, 2010 11:30 PM CDT
1.
3/3 points
Question: MI3 2.7.X.025
Study the example in the textbook entitled "Colliding Students." The following questions refer
to this example.
What was chosen as the system to be analyzed?
Which components of the net force on the system were zero during the collision?
(Check all that apply.)
What is the correct form of the
x
component of the Momentum Principle for this
situation?
Which of these quantities were used in estimating the duration of the collision,
?
(Check all that apply.)
The due date for this assignment is past.
Your work can be viewed below, but no changes can be made.
Both students.
The student on the right.
Both students plus the Earth.
The student on the left.
F
net,
x
= 0
F
net,
y
= 0
F
net,
z
= 0
0 =
mv
x
+
F
net,
x
Δ
t
0 = 0 +
F
net,
x
Δ
t
mv
x
= 0 +
F
net,
x
Δ
t
Δ
t
Page 1 of 4
Ch2 HW4 f10
11/21/2010
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View Full DocumentHow was the force exerted by one student on the other calculated?
About how large was the estimated force exerted by one student on the other,
compared to the weight of the student?
= 35
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 Fall '10
 Chelikowsky
 Approximation, Force, Mass, Momentum, momentum principle

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