Answered: -L- A B

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 uniform cord 50 in. long passes over a pulley at B and is attached to a pin support at A . Knowing that L = 20 in. and neglecting the effect of friction, determine the smaller of the two values of h for which the cord is in equilibrium.

Expert Solution

Step 1

Draw the schematic diagram to have a better understanding of the problem.

Length of overhang cord is

The weight of the overhang equals to the maximum tension in the cord.

So the expression of maximum tension is,

Step 2

Now substitute required value in the above equation to obtain the desired value,

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