(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 from the right end of the beam should  support B be placed so that the boy can walk just to the end of the beam

Principles of Heat Transfer (Activate Learning with these NEW titles from Engineering!)
8th Edition
ISBN:9781305387102
Author:Kreith, Frank; Manglik, Raj M.
Publisher:Kreith, Frank; Manglik, Raj M.
Chapter11: Heat Transfer By Radiation
Section: Chapter Questions
Problem 11.12P
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• A uniform aluminum beam 9.00 m long, weighing 300 N, 
rests symmetrically on two supports 5.00 m apart (Fig. E11.14). 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 from the right end of the beam should 
support B be placed so that the boy can walk just to the end of the beam

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