Link BD consists of a single bar 30 mm wide and 12 mm thick. Knowing that each pin has a10 mm diameter, determine the maximum value of the average normal stress in the link BD if θ = 15 degrees.

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Answer:

Here is the solution for given problem  :)

WORKING CODE:(In C++):

complex.h:

#ifndef COMPLEX_H
#define COMPLEX H
struct complexNumber {

float re = 0; // real part of complex number re=

float im = 0; // imaginary part of complex number
};
class complex {
public :

	complex ();
	complexNumber add(complexNumber, complexNumber);
	complexNumber multiply(complexNumber,complexNumber);
	complexNumber absolute(complexNumber);
	complexNumber getLastAnswer();
	void print(complexNumber);

private:
	complexNumber storeLastAnswer(complexNumber);
	complexNumber lastAnswer;
};
#endif

complex.cpp:

#include <iostream>
#include "complex.h"
#include<cmath>
using namespace std;
complex::complex() {//default constructor of complex class

}
complexNumber complex::add(complexNumber c1,complexNumber c2)
{
	//calculating the addition operation of complex numbers
	lastAnswer.re = c1.re+c2.re;
	lastAnswer.im = c1.im+c2.im;
return lastAnswer;
}
complexNumber complex::multiply(complexNumber c1,complexNumber c2)
{
	//calculating the multiplication operation of complex numbers
	lastAnswer.re = (c1.re*c2.re)-(c1.im*c2.im);
	lastAnswer.im = (c1.re*c2.im)+(c1.im*c2.re);
return lastAnswer;
}
complexNumber complex::absolute(complexNumber c1)
{
	//calculating the absolute of complex number
	lastAnswer.re = sqrt((c1.re*c1.re)+(c1.im*c1.im));
	lastAnswer.im = 0.0;
	return lastAnswer;
}
complexNumber complex::getLastAnswer()
{
	//returning the previous answer..
	return lastAnswer;
}
void complex::print(complexNumber c1)
{
	//printing the complex number..
	cout<<c1.re<<"+"<<"("<<c1.im<<"i"<<")"<<endl;
}

main.cpp:

#include "complex.cpp"
int main()
{
    struct complexNumber numl, num2, result;
    numl.re = 10;
    numl.im = -5;
    num2.re = 2;
    num2.im = 1.5;
    complex calc;
    result = calc.add(numl, num2);
    calc.print (result);
    calc.print(calc.getLastAnswer());
    result = calc.absolute(result);
    calc.print(result);
    calc.print(calc.getLastAnswer());
    result = calc.multiply (num2, calc.getLastAnswer());
    calc.print (result);
    calc.print(calc.getLastAnswer());
return 0;
}

OUTPUT: