The bar shown in diagram is subjected to a tensile load of 150 kN. If the stress in the middle portion is limited to 160 N/mm2, determine the diameter of the middle portion. Find also the length of the middle portion if the total elongation of the bar is to be 0.25 cm. Young's modulus is given as equal to 2.0 x 105 N/mm2. 150 KN ➜ 10 cm DIA 45 cm 10 cm DIA 150 KN

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