Answered: ermine the moment in the beam as a…

Elements Of Electromagnetics

7th Edition

ISBN:9780190698614

Author:Sadiku, Matthew N. O.

Publisher:Sadiku, Matthew N. O.

ChapterMA: Math Assessment

Section: Chapter Questions

Problem 1.1MA

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Question

A) Determine the moment in the beam as a function of x for 4ft<x<10ft

B) Determine the shear in the beam as a function of x for 10ft<x<14ft

C) Determine the moment in the beam as a function of x for 10ft<x<14ft

250 lb
4 ft
150 lb/ft
6 ft
B
4 ft-
250 lb

Expert Solution

Step 1: Draw the freebody diagram for the system.

The moment equilibrium at point A is-

$table row cell sum from blank to blank of M subscript A end cell equals 0 row cell B open parentheses 6 close parentheses end cell equals cell 150 open parentheses 6 squared over 2 close parentheses plus 250 cross times 10 minus 250 open parentheses 4 close parentheses end cell row B equals cell 700 space lb end cell row cell sum from blank to blank of straight F subscript straight y end cell equals 0 row straight A equals cell 150 cross times 6 plus 250 plus 250 minus 700 end cell row blank equals cell 700 space lb end cell end table$

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