11.12 A uniform aluminum beam 9.00 m long, weighing 300 N, rests symmetrically on two supports 5.00 m apart (Fig. E11.12). A boy weighing 600 N starts at point A and walks toward the right. (a) In the same diagram construct two graphs showing the upward forces FA and FB exerted on the beam at points A and B, as functions of the coordinate x of the boy. Let 1 cm = 100 N vertically, and 1 cm = 1.00 m horizontally. (b) From your diagram, how far beyond point B can the boy walk before the beam tips? (c) How far Figure E11.12 B A

11.12 A uniform aluminum beam 9.00 m long, weighing 300 N, rests symmetrically on two supports 5.00 m apart (Fig. E11.12). A boy weighing 600 N starts at point A and walks toward the right. (a) In the same diagram construct two graphs showing the upward forces FA and FB exerted on the beam at points A and B, as functions of the coordinate x of the boy. Let 1 cm = 100 N vertically, and 1 cm = 1.00 m horizontally. (b) From your diagram, how far beyond point B can the boy walk before the beam tips? (c) How far Figure E11.12 B A

College Physics

11th Edition

ISBN:9781305952300

Author:Raymond A. Serway, Chris Vuille

Publisher:Raymond A. Serway, Chris Vuille

Chapter1: Units, Trigonometry. And Vectors

Section: Chapter Questions

Problem 1CQ: Estimate the order of magnitude of the length, in meters, of each of the following; (a) a mouse, (b)...

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Question

11.12 A uniform aluminum beam 9.00 m long, weighing 300 N,
rests symmetrically on two supports 5.00 m apart (Fig. E11.12). A
boy weighing 600 N starts at point A and walks toward the right.
(a) In the same diagram construct two graphs showing the upward
forces FA and FB exerted on the beam at points A and B, as functions
of the coordinate x of the boy. Let 1 cm = 100 N vertically, and
1 cm = 1.00 m horizontally. (b) From your diagram, how far
beyond point B can the boy walk before the beam tips? (c) How far
Figure E11.12
B
A

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