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clear
//
//Given
//Variable declaration
d=12 //Diameter of bar in mm
delL=3 //Increase in length in mm
W=8000 //Steady load in N
P=800 //Falling weight in N
h=8*10 //Vertical distance in mm
E=2e5 //Youngs modulus in N/sq.mm
//Calculation
A=((%pi/4)*d**2) //Area of bar in sq.mm
L=(E*A*delL/W) //Length of the bar in mm
sigma=((P/A)*(1+(sqrt(1+((2*E*A*h)/(P*L))))))
sigma=(sigma) //Stress produced by the falling weight in N/sq.mm
//Result
printf("\n Stress produced by the falling weight = %0.3f N/mm^2",sigma)
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