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PHYS172-SP11-HW03

# PHYS172-SP11-HW03 - PHYS172-SP11-HW03...

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Web Assign PHYS172-SP11-HW03 (Homework) Edward Tackjewn Lee PHYS 172-SPRING 2011, Spring 2011 Instructor: Virendra Saxena Current Score : 33 / 35 Due : Saturday, January 22, 2011 11:59 PM EST The due date for this assignment is past. Your work can be viewed below, but no changes can be made. PHYS172-SP11-HW03 http://www.webassign.net/[email protected]/student.pl?s=2011... 1 of 7 2/9/2011 4:55 PM

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1. 1/1 points Question: MI2 02.X.08.03 For each graph of v x vs. t in the left column, choose the letter (a-i) corresponding to the appropriate description of motion. Not all descriptions will be used. Assume the usual coordinate system (+x to the right, +y up, +z out of the page). g g a. A cart moves to the left, gradually slowing down. d d b. A cart moves to the left at constant speed. i i c. A cart moves to the right, gradually speeding up. c c d. A cart moves to the right at constant speed. b b e. A cart moves to the right, gradually slowing down. h h f. A cart remains stationary and does not move. g. A cart moves to the left, gradually speeding up. h. A cart moves to the left, gradually slowing down, stops, and moves to the right, speeding up. i. A cart moves to the right, gradually slowing down, stops, and moves to the left, speeding up. PHYS172-SP11-HW03 http://www.webassign.net/[email protected]/student.pl?s=2011... 2 of 7 2/9/2011 4:55 PM
2. 0/1 points Question: MI2 02.X.08.04 For each graph of v y vs. t in the left column, choose the letter (a-i) corresponding to the appropriate description of motion. Not all descriptions will be used. Assume the usual coordinate system (+x to the right, +y up, +z out of the page). b d a. A feather falls toward the Earth at constant speed. b a b. A mass hangs motionless at the end of a vertical spring.

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