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clear
//
//Given
//Variable declaration
d=12.5 //Diameter of the rod in mm
delL=3.2 //Increase in length in mm
W=10*1000 //Steady load in N
P=700 //Falling load in N
h=75 //Falling height in mm
E=2.1e5 //Youngs modulus in N/sq.mm
//Calculation
A=((%pi/4)*d**2) //Area of rod in sq.mm
L=(E*A*delL/W) //Length of the rod in mm
sigma=((P/A)*(1+(sqrt(1+((2*E*A*h)/(P*L)))))) //Stress produced by the falling weight in N/mm^2
//Result
printf("\n NOTE:The given answer for stress is wrong.The correct answer is,")
printf("\n Stress = %.2f N/mm^2",sigma)
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