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InterviewSolution
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3. A 140 cm long steel bar is acted upon by forces as shown in the figurebelow. Determine the total elongation of bar. Take: E = 204 GPa80 KN100 KN3 cm40 KN 4 cm 60 KN3 cm40 cm60 cm |
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Answer» The action of forces on each part of rod is shown in FIGURE We KNOW that the extension due to external force F is GIVEN by e=FlAY∴eAB=(60×103)×1.51×2×1011=4.5×10−7m EBC=(70×103)×11×2×1011=3.5×10−7m and eCD=(50×103)×21×2×1011=5.0×10−7m The TOTAL extension e=eAB+eBC+eCD =4.5×10−7+3.5×10−7+5.0×10−7 Explanation:pls mark as brainliest |
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