IFHW10-with data

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Computer Intensive Physics 211

InfoMall Homework #10 -Printed only (10 points)

Spring, 1998

Due 2/17/98

IFHW10: Copy and paste the data on the next few pages to your spreadsheet or download

these tab separated text files CCBefore.txt CCDuring.txt CCAfter.txt (hint: hold down the mouse button while clicking on the link

and do a "save as" )

Using the InfoMall

B)Cars clip
This movie clip shows the collision between two automobiles, 1973 Chevelles of
weight 3820 pounds (1 pound is equivalent to a mass of 0.454 kg).
The motion picture rate = 500 pictures/second,
*(4 points) Analyze the motion of both cars.

B-1(a) Find the initial velocities for both cars
Remember both velocities may have vertical and horizontal components.
B-1(b) Find the initial momentum of each car.
B-1(b) Find the total initial momentum of the two car system.
B-2(a) Find the final velocities for both cars after they collided.
Remember both velocities may have vertical and horizontal components.
B-2(b) Find the final momentum of each car.
B-2(b) Find the total final momentum of the two car system.
B-3(a) Find the change in momentum of each car.
Remember both momenta may have vertical and horizontal components.
B-3(a) Find the change in the total momentum of the two car system.
B-4. How is the change in momentum of one car related to the change in
momentum of the other car ? Justify your answer from your data.

Using this facts analyze the data for the collision of the two automobiles while they
are making their first contact with each other.
1) (3 points) Compute an Impulse vs. time chart for each of the two automobiles
during this part of the collision.
[If you were not able to export your class data to yourself, get the data from our
web site.]
Compare these two charts. How are they the same? How are they different?

2) (3 points) Find three different references on the InfoMall that explain elastic and
inelastic collisions. What physics concepts are necessary to explain the
difference between these two types of collisions? How can you distinguish
between these two types of collisions in everyday life without using
physics words?
Give the citations for your three references.


Computer Intensive Physics 211 InfoMall Homework #10 -Printed only (10 points)		Spring, 1998 Due 2/17/98
IFHW10: Copy and paste the data on the next few pages to your spreadsheet or download these tab separated text files CCBefore.txt CCDuring.txt CCAfter.txt (hint: hold down the mouse button while clicking on the link and do a "save as" )
	Using the InfoMall
B)Cars clip This movie clip shows the collision between two automobiles, 1973 Chevelles of weight 3820 pounds (1 pound is equivalent to a mass of 0.454 kg). The motion picture rate = 500 pictures/second, *(4 points) Analyze the motion of both cars. B-1(a) Find the initial velocities for both cars Remember both velocities may have vertical and horizontal components. B-1(b) Find the initial momentum of each car. B-1(b) Find the total initial momentum of the two car system. B-2(a) Find the final velocities for both cars after they collided. Remember both velocities may have vertical and horizontal components. B-2(b) Find the final momentum of each car. B-2(b) Find the total final momentum of the two car system. B-3(a) Find the change in momentum of each car. Remember both momenta may have vertical and horizontal components. B-3(a) Find the change in the total momentum of the two car system. B-4. How is the change in momentum of one car related to the change in momentum of the other car ? Justify your answer from your data. Using this facts analyze the data for the collision of the two automobiles while they are making their first contact with each other. 1) (3 points) Compute an Impulse vs. time chart for each of the two automobiles during this part of the collision. [If you were not able to export your class data to yourself, get the data from our web site.] Compare these two charts. How are they the same? How are they different? 2) (3 points) Find three different references on the InfoMall that explain elastic and inelastic collisions. What physics concepts are necessary to explain the difference between these two types of collisions? How can you distinguish between these two types of collisions in everyday life without using physics words? Give the citations for your three references.