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# Solved: The rigid metal strip of negligible weight is used as part of an electromagnetic

ISBN: 9780134382593 479

## Solution for problem 4-17 Chapter 4.4

Statics and Mechanics of Materials | 5th Edition

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Problem 4-17

The rigid metal strip of negligible weight is used as part of an electromagnetic switch. If the stiffness of the springs at A and B is k = 5 N / m and the strip is originally horizontal when the springs are unstretched, determine the smallest force F needed to close the contact gap at C

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ENGR 121 B Lecture Notes for 10/17/2016 Spencer Kociba ● Quiz on vector operations ● Truth tables ○ Both variables must be true (logical output) X Y xandy 0 0 0 0 1 0 1 0 0 1 1 1 ○ At least one must be true X Y xory 0 0 0 0 1 1 1 0 1 1 1 1 ○ Only 1 is true X Y x+y 0 0 0 0 1 1 1 0 1 1 1 0 ● If/else statements ○ Nested ifelse command ■ If condition 1 ● Action 2 ■ Elseif condition 2 ■ Elseif condition 3 ● Action 3 ■ (etc) ■ Else ● Action final ■ End

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Solved: The rigid metal strip of negligible weight is used as part of an electromagnetic