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Ch2 HW1 S2008 - Ch2 HW1 S2008 10:21 AM Web Assign Ch2 HW1...

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4/25/08 10:21 AM Ch2 HW1 S2008 Page 1 of 4 http://www.webassign.net/[email protected]/[email protected] Ch2 HW1 S2008 (Homework) KRISTIN SEILOFF Instructor: Jennifer Curtis Description System and surroundings; the Momentum Principle; net force; impulse Instructions Readings: Sections 2.1-2.3 Web Assign Current Score: 18 out of 21 Due: Friday, January 18, 200808:35 AM EST 1. 3/3 submissions A ball moves in the direction of the arrow labeled c below. The ball is struck by a stick which briefly exerts a force on the ball in the direction of the arrow labeled e below. Which arrow best describes the direction of , the change in the ball's momentum? d e 2. 2/3 submissions You lift a heavy box. We'll consider this process for different choices of system and surroundings. (1) Choose the box as the system of interest. What objects in the surroundings exert significant forces on this system? You and the Earth
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Ch2 HW1 S2008 - Ch2 HW1 S2008 10:21 AM Web Assign Ch2 HW1...

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