# Ch2 HW4 - WebAssign Ch2 HW4 (Homework) Current Score: 20...

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Ch2 HW4 (Homework) Arthur Barfield PHYS 2211, section M, Fall 2008 Instructor: Jennifer Curtis Web Assign Current Score: 20 out of 20 Due: Friday, September 5, 2008 09:00 AM EDT Description Choice of system; Collisions; Conservation of momentum Instructions Reading: Sec 2.8-2.10. Note that only two submissions are permitted for Problem 1, which is multiple choice. The due date for this assignment is past. Your work can be viewed below, but no changes can be made. 1. [MI2 02.X.09.01] 3/3 points The windshield of a speeding car hits a hovering insect. Consider the time interval from just before the car hits the insect to just after the impact. For which choice of system is the change of momentum zero? The system consisting of the bug alone. The system consisting of the car alone. The system consisting of the bug plus the car. Compare the magnitude of the change of momentum of the bug to that of the car: The magnitude of change of momentum of the bug is bigger. The magnitude of change of momentum of the car is bigger. The magnitudes of the change of momentum are equal.

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## This note was uploaded on 04/19/2010 for the course PHYS 2212 taught by Professor Kindermann during the Spring '09 term at Georgia Institute of Technology.

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Ch2 HW4 - WebAssign Ch2 HW4 (Homework) Current Score: 20...

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