Ch10 HW1 - WebAssign Ch10 HW1(Homework Current Score 24 out...

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Ch10 HW1 (Homework) Arthur Barfield PHYS 2211, section M, Fall 2008 Instructor: Jennifer Curtis Web Assign Current Score: 24 out of 30 Due: Tuesday, November 4, 2008 03:41 AM EST Description Angular momentum; Conservation of angular momentum Instructions Reading: Section 10.1 and Section 10.4 On this assignment you are allowed 3 submissions per question part. The due date for this assignment is past. Your work can be viewed below, but no changes can be made. 1. [MI2 10.X.01.alt01] 8/8 points Determine both the magnitude and direction of the translational angular momentum of the particle at location O relative to each point: A , B , C , D , E , F , G , and H . The magnitude of the momentum p = 70 kg · m/s, and the distances are h = 9 m, b = 6 m, and w = 8 m. Assume the usual coordinate system ( +x to the right, +y up, and +z out of the page, toward you.) | A | = 420 420 kg · m 2 /s Direction: -z -z | B | = 420 420 kg · m 2 /s Direction: -z -z
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| C | = 0 0 kg · m 2 /s Direction: none (zero magnitude) none (zero magnitude) | D | = 630 630 kg · m 2 /s Direction: +z +z | E | = 630 630 kg · m 2 /s Direction: +z +z | F | = 630 630 kg · m 2 /s Direction: +z +z | G | = 0 0 kg · m 2 /s Direction: none (zero magnitude) none (zero magnitude) | H | = 420 420 kg · m 2 /s Direction: -z -z Solution or Explanation | x | = r | Use the right-hand rule to determine the direction of the translational angular momentum. Let
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